Two days now with just the stock secondary and MDS weights. 5000 to 6000ft. 2011 153 M8 std with SLP pipe, SLP airbox addition and PCV. I've got about 38lbs off with add-ons and take-offs and holes and titanium springs and... And, about 250lbs added with rider, gear,tools,belt,water (I lied it's beer) and a snack. Apples to apples eh LOL.
Track speed gains? Yes. Cooler clutching? Yes. Backshift good? Yes. Happy? Yes Yes Yes. I'll be able to drop another 4 or 5 lbs in tools and springs soon LOL.
Some wonder about a multi-angled helix. Steve built multi-angle into his weights, just for our secondary, so no need.
These weights definitly put a smoother power delivery to the track (less spin when angles of the hill change, means you'll go higher).
Yesterday I ran a unfinished logging road from end to end and back. About 22km. Wide open. Lots of air from log and dirt piles covered in 5 feetish of base and 1 to 2 ft of fresh. Speeds from 30 to 70mph and the rpm from 8080 to 8160 (best I can tell cause I had to pay attention to the 15 ft holes on the sides).
Stopped right at the end, opened the hood and panel. Clutches were warm, belt a bit warmer. That's good clutching.
Tried some hills (way less work on the clutches). 40 to 60 footers straight up, saw 40 plus at the bottom but then had to pay attention to the front end (keep it down) and the trees. 60 to 100 footers almost straight up, I'm sure I saw 50mph but then I lost my line ( note to self, DON'T look at the speedo when I'm wide open LOL) and had to back off and side hill out and up. Lucked out and found a line before having to drop back into the creek in a bad spot. Longer hills, I'll have to wait 'till it's a little less avalanchy cause the packed ones aren't a challenge.
Meadow runs about 1/4 mile virgin 70ish but too much snow dust coming on to the speedo to be sure. Back on my track, shut off at 80ish (cause I know thats about it on the 10 and 11's).
Then I said to self, self 'nuff testin' we're done. Blue sky, fresh snow, Let's burn this tank of fuel.
Oh, I also said thanks Steve.
geo