I took my 3.5 SunMountian bag and emptied all the crap, coins, tees, extra dozen balls, divot tools, bug spray, sun lotion, flask (yep), water bottle, rain cover, towel, metal & plastic course tags off and out of.. makes 3-wheel speed cart much more enjoyable, one tends to load up because its so easy to push
take 4 clubs out of 3.5 bag.. for summer, add back only 4-6 balls, pint instead of quart water bottle .. easy walking
use 2.5 SunMountain gca bag, easier walking ..except it kept getting blown over at ballyneal!!!
if you're blaming cart for your game, look elsewhere, like short game