what would be a good weight to fight at ?I am 5'7" and right now I weight 180lb I have strong stand up but need work on my ground .Right now I take bjj classes and the people are from 160lb to 200lb .I cant get a good estimate on what my weight should be.On the ground I am alot stronger than the 160lb to 175lbers but they have alot more speed .trying to takedown the 190lb to 200lb is hard but when we get on the ground we have equal strength.Also standing up with the taller guys is difficult because of there reach.What should I try to fight at ?If I lost 5lbs fat and gained 10lbs more mass I would be at 185lb but would it be a good idea standing with a true 6' 185lber?