2/19/2012

Defending the kimura

Been training back takes from the spin behind (name used on Ryan Hall's) back attack dvd. I am sometimes able to catch a kimura after spinning behind. It seems that this is a very common attack used by many. I've often tried defending the kimura by just forcing the elbow back to the mat. I have now started looking at a more sophisticated defense demonstrated by Kurt Osiander. It used your arm to create space between you and your opponent while the kimura is locked, and then spinning towards your elbow and pushing on your opponent's bicep for more space.

It also feel that when there is enough space, spinning the other way might be possible.


2/13/2012

Basic technique Monday: The Tanaka Tornado

We know the basics rule so here is a less known basic technique from Hawaii's Todd Tanaka. Trained at his academy last summer for a week and had a private class with him...reminded me that movement is key from rooster weight to Rodolfo.

I though you could basically make the move better by forcing the opponent into holding the collar by grabbing his sleeve

2/12/2012

Gi review: Koral Light Gi

ALSO SEE MY REVIEW FOR KORAL MKM HERE: See Koral MKM Gi

Overall impression and fabric

I decided to do a review on a A3 Black Koral Light gi. Although the design has been around for a good while it has some big differences (good and bad) to other standard gis on the market.




First of all the gi is light as it promises. The combined weight of the jacket and pants is approximately 1,6kg according to my measurements (Koral says the weight before washing it is around 1,7 kg). The gi is supposed to be 100% pre-schrunk but even this gi shrunk a bit while washing in hot water.

The gi jacket is made of single piece of fabric The jacket is made of rip stop fabric which is quite uncommon. The only other gi I know of which has a rip stop jacket is the Kauai Kimonos gi from Hawaii. Many manufacturers on the other hand, use rip stop as material for pants to make them light. The rip stop jacket feels very comfortable against the skin. Here you can see what the rip stop looks like:



There is however a great problem with the rip stop jacket, which is that the material streches when pulled. This means all grips become hard to break. This can be good if training in hot weather and training grip breaks, but at other times it is a nuisance.

The pants are very traditional looking and I personally like the material on pants. As far as I know, they are the same pants as in the old version of the classic gi.  They are course but very comfortable, like a worn out pair of jeans. Here is a close up on the pant fabric compared with Atana single weave:



Fit and sizing


Here is the official sizing chart by Koral

A0 5'0" - 5'4"/1,55 - 1,60m 95 - 120 lbs/Max 60Kg
A1 5'4" - 5'8"/1,60 - 1,70 m 125 - 155 lbs/Max 75Kg
A2 5'8" - 6'0"/1,70 - 1,80m 155 - 190 lbs/Max 85Kg
A3 5'11" - 6'2"/1,80 - 1,90m 190 - 220 lbs/Max 95Kg
A4 6’1” - 6’4”/1,90 - 2,00m 220 - 255 lbs/Max 120Kg
A5 More than 6’4’’/2,00m More than 255 lbs/120Kg
 
The measurements



Key issues with fit

- Wide cut jacket from around the gut and especially around the shoulders
- The pants are quite long but slim

Here is a comparison to Atama A3 single weave to demonstrate how the jacket is wider and has longer sleeves. The Koral jacket has a lot of room around the shoulders.



The pants are of similar width but longer



Details

The sleeve is wider than average at around 17,5 cm. Here is the comparison to Atama



The collar is quite thin and quite soft and easy to manipulate. It is a common problem with light weight gis. I have an Vulkan Ultra light, and it has an even slimmer collar. Here is a comparison to the Atama single weave:


The pant string is made of the same course fabric as the pants, which makes it very good and it doesn't become undone at all. It is better than 90% of the new "high tech" pant strings on the market



The reinforcements are pretty minimal compared with heavy training gis. Here is a picture of the pant sleeve reinforcements.



 Conclusion

Key issues regarding Koral Light gi:

- Comfortable and light jacket

- The jacket is made of rip stop fabric which makes the sleeves strech making sleeve grips really difficult to break at times. A definite downside

- One of the best pant materials ever

- A thin collar compared with normal gis. However, this is almost a must to keep the gi light. Vulkans and Shoyoroll's have fairly thin collars as well.


Would be a good choice for bulky guys looking for a light competition gi. However, I would recommend the Koral Classic instead so you don't end up loosing because of strechy sleeves.

Overall, a good gi with one major drawback (strech fabric)

You can order the gi at Koraleurope.com

Overall grade: 8/10

2/09/2012

Defense agaist the berimbolo sweep by Tanquinho

Been watching some Jordon Schultz material on the berimbolo and especially his de la riva sweep to oma plata combination.

I haven't seen any defenses to this high percentage sweep which doesn't involve doing some sort of inverted spin yourself. Jordon Schultz also represents a toe hold as a counter attack option (the free leg in berimbolo is put on top of your opponent's chest and before in place, there is an opportunity for a toe hold).

I figured Augusto "Tanquinho" Mendes did a good job in beating Rafael Mendes' berimbolo in Abu Dhabi 2011. He also ended up winning the fight. He defended the sweep by holding on to Rafael's free leg and getting his hips down to a reverse half guard position. He then grips Rafael's collar to help keep him on the bottom. The defense is shown on this video at roughly after a minute into the fight