I am 5-11 and weigh approximately 265 (former competetive weightlifter). For the past 5 months that I was taking BJJ lessons. My performance went from bad to worse. When I started, I was using my power to basically overwhelm guys. Then one day (in the first month) I rolled with the master of the school, a Black Belt in Gracie JJ. At first I was muscling him but he easily made me tap a dozen times in about 15 minutes. It was a sad sight. I went home to Ice my arm and spent the whole next day massaging the soreness out of my neck. He told me that I had to not rely on power as much as to learn the skills. I agree completely but when I roll now I get manhandled. By bigger guys, smaller guys teenaged white belts, etc. I feel helpless when I can't use my size and power. It is like telling Barry Bonds that Homeruns don't count. Then again when I apply an Ezekel choke to someone and squeeze with all I have, I feel like it is dirty Jiu Jitsu. Then again when a Blue Belt fights like he is fighting for a kidney transplant, cranks my arm in an armbar with all he has. I get really pissed and I spend the whole next day pissed and in pain. My question to you guys. Is there a martial art that I can learn that I can utilize my size and power. BJJ is no fun anymore.