I always use 16's for everything... Sparring and bags, is that ok? Or should I be using a lighter glove on the bags? I am pretty sure that 16 is what everyone uses during sparring though.
Most gyms will have you use 16s to spar for protection. I use 14 ounces because I didnt feel like waiting for 16s to become avalible but its ok. Lots of folks like smaller gloves on the bags or using the mits but I perfer the 14-16 oz because IMO it helps your arm endurance and hand speed when you put on them smaller gloves like in my case the 4 oz MMA gloves it feels so great.