I have a hobbit with a polini kit, vm18, and the MLM people's pipe. It his 50+ easily and I've had it up to 55+ regularly but i get scared. My temps are kinda high at ~420.
TJT is a must w/ the treats rumpus plate. I think my weights are maybe all 6 blue but cant remember. I just know blue is like the medium (yellow being heavier and black being lighter). I remember 3 black and 3 yellow = 6 blue. I have stiffer clutch springs but only slightly.
i do NOT like to wheelie from take-off nor do Iike revving out before the clutch engages. I liken this to revving up my car and then dropping the clutch at take off. I don't expect that to be good for the life of the clutch/car so I don't do it on my moped.
I have over 3000 miles on my hobbit over 5+ years. My car has 150k miles still on the original clutch.