I totally agree, well its a close competition with that or fitting a race variator. I was dropping to 20mph on some hills even on 4,5g weightsbut with the 1500rpm i can run up the same hills at 30mph now, a huge improvement and it didnt even cost me any top end speed. I guess if you live in a real flat country then Baddi's theory is correct but for where i live i need to get up hills without cyclists and buses overtaking me, thats embarrassing.
5.5g and 1500rpm spring in good for me, prob the cvt best set up ive had, works well with a stock belt or a longer 736 belt.
What the f***!? (Excuse my french).
Of course you are loosing power up-hill with that kind of roller weight. To give the force to press the 30 kg spring at the maximum effect rpm (7500), 6,5g rollers are neccercary. If you go down in weight, you will have to go up in rpm's to provide the force neccercary, and this takes alot of energy from the engine, which is doesn't have over the 7500 rpm. Therefore your powerloss up hill is in the first place caused by too light rollers, and you try to compensate for that with another spring, instead of just putting in the right roller weights :S
My old agility could easily go 30 mph up hill (and if i wasnt at that speed, it was easy to accellerate up steep hills from standing still, with 2 persons on it) with 6g rollers, malossi multivar and the standart 30 kg spring.