Hello, i just order a pair of 20oz sparring glove. I thought 20oz was a good idea because i'm a heavy hitter. I was talking with someone at the gym and he say to me nobody will do sparring with me because i have 20oz... so i don't really understand they say when i order the glove i should go with 20oz because i hit hard, but someone at the gym say nobody would sparre with my if i wear 20oz? Which size i should buy. Sorry my english suck.