i'm glad you replied, i got a little discouraged when i asked about everyone's favorite combos and nobody answeres. but yeah i know what you mean about the back fist and one of the guys i train with always spinning kicks me in the ribs when i follow him. i'll learn before too long lol
i wish i could backfist but when we spar, we spar light, we wear gloves but we don't wear headgear, and i am always scared to lay people out by accident.