last year i weighed around 200lbs,i felt like i was a good rider, very capable.
this past summer i lost 20lbs, and started working out, when i say working out i mean doing about 30 min a day of push ups, situps, working with 20lb free weights. very minimal!!!!!
my sled last year was a stripped down 09m8,slp pipe, bdx intake, all the underhood bs was stripped off it. its pretty light compared to stock.
this year i boosted a 10 m8, it has a cooler and i know its heavier than my 09m8. i would imagine by 30lbs or so
my point is im in better shape and a little lighter, and im throwing my 10 around much easier, without the fatigue i would get over a day of riding last year.
i guess my point is, you can lose a little weight, get in better shape and ride a slightly heavier sled, and still improve your day to day riding.
for what its worth.