I have years of various standup MA. I also love BJJ and have been doing it on and off for the past several years also. The reason why it is on and off so often is because I find myself injured from BJJ more than anything; mostly muscle strains. It often leaves me sidelined for a few days at a time which stops me from doing other strength and conditioning work, etc. I have tried Sambo and Wrestling also but stopped because the places closed down. I didn't get half the injuries from them that I do in BJJ. When I am not doing MA I am doing strength and conditioning so I consider myself relatively strong and fit also. Could it be that I am just not cut out for BJJ? Anyone else ever get consistent injuries from just one style of training?