I've only done GS Legs once and used the five-pounders. When I previewed it I was snorting to myself - "FIVE pounds on legs, please, I'll double THAT!" - so I set up my 8s and 10s right close so I could switch over after the first or second rep. Well, by the second rep I was FEELING IT, and by the end I was grateful for those little ol' fives!
Allison