The Bartitsu Laboratory

Doyle Clan, Rince an Bhata Uisce Bheatha & Bartitsu Laboratory of Rochester, NY.

James Kroll is Chief Instructor of the Aikikai of Rochester and Head Coach for the Bartitsu Laboratory of Rochester, NY and has more than 28 years of formal martial experience and training. Doyle Irish Stick Fighting - Level 4 Coach
Bare-knuckle Combatives Instructor
Gutter Fighting Instructor - Fairbairn/Sykes
Wing Chun - Leung Shen Lineage
Jeet Kun Do
Nidan - Aikikai Aikido - Aikikai Rochester -

06/02/2026

Any tool is a weapon if you hold it right. You can use a book as well. Explore, Develop, Refine. Ta Gach Rud Gach Rud, "Everything is Everything."

06/02/2026

The human body can only be manipulated in so many ways. Can you see the in between movements in your art? Can you see where this is already part of the transitional movements between the techniques you already study? I do. Inspiration comes to the prepared mind. Explore, Develop, Refine. Ta Gach Rud Gach Rud, "Everything is Everything."

06/01/2026

05/23/2026

"Any tool is a weapon if you hold it right."

05/21/2026

What can you take from the concepts of Silat Flow and how it relates to putting the 'Legos' of Doyle together? Explore, Develop, Refine.

This Silat Master Blew My Mind Today I have invited G**o LaVonne Martin from Martin's Academy of Martial Arts to showcase some of her Silat techniques. Get 10% any purchase with Transparen...

05/21/2026

How many principles can you find in common to what we do already in Doyle? (Coil? Gun Powder? etc.) Explore, Develop, Refine.

Kevin Lee 6.3K likes, 783 comments. "This Is (NOT) Wing Chun"

05/21/2026

How HUNGRY are you?

Someone asked me why there are only 5 levels in Doyle. I have been thinking about this since. 'Level 5' is the Instructor level but from my research and studies it barely scratches what is in the system. There is SO much in the system that is hidden or left to exploration that no curriculum list can adequately encompass it in only 5 levels in my opinion. There could easily be up to 10 levels if we are just talking about technique memorization individually. I think the system is better understood as a set of principles rather than a list of techniques similar to JKD. Paul Vunak described Bruce Lee's view of JKD as follows: "At the average school, brown belts are better fighters than black belts. Not because they know more, but because they are still hungry. The moment a practitioner receives their black belt, a subconscious signal fires: you have arrived. Growth stops. Diminishing capacity begins. Bruce Lee despised the belt system for exactly this reason — it gives people a psychological excuse to quit improving at the exact moment they should be accelerating." In Doyle, I think you are left leaving the 'Table' still hungry by Level 5. You must explore what you have been given and be left humbled by how much isn't given to you but what you must explore. I have one question, "How HUNGRY are you?"