Originally Posted by Zak
you measured your arm to add to your height? just stand up to a wall and mark up the highest point you can touch, no addition needed just mark that.
also, a 7'10 reach is pretty good, i'm 6'2.5 and i have a 8'2-8'3 reach and i have some pretty lanky arms. and in terms of amount needed above rim to dunk, it varies from person to person, but i would say if you want a comfortable dunk you would need a good 9-11 inches over from the tip of your middle finger.
You do have lanky arms. My friend is 6'2 and his reach is 7'10. I have another friend who 6'0 and had a reach of 8'0 tho... you are along the lines of that guy haha. You lanky guys drive me crazy... It's like racing someone in a 40 who has a 5-10 yard headstart when going up for layups and rebounds.