Uploaded May 2016 | Updated September 2026, 4 days ago

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islandtopteam.com/seminars
grapplearts.com/bjj-back-attacks-formula-app-iphone-android-kindle-devices
Here is part of Professor Rob's segment from the PTT Burnaby Ecuador Earthquake Relief Seminar. Rob taught a concept and a couple of techniques that can be found on the new Back Attack Formula App available through Grapplearts.com