It's not so much that I train my ground work more than I train my standup, because I do spend alot of time shadow-boxing and doing Muay Thai training, but I'm 5'6". 95% of the guys that I'm going to fight are going to be taller than me. The reach I lose in standup seems to give me an advantage when I have an opponent pulled in tight in my guard or when I'm in the mount.
I train where I know I will have an advantage.
Sig by Toxic
Barnett - Toquinho -Werdum - "Nurmie"
Z. Gurgel - Morango - Rocha - Tiequan