Mars, what are you doing with a moby anyhow.
I have tried the variplus variator. I found a couple of things that are irritating.
1. the diameter is a bit larger than stock and ER3/2 variators. which in turn you have to check that the pulley and the variplus do not collide when at full variation. there are ways to avoid this but you need to check.
2. it seems these variators where out after a years worth of use. then the weights fly out like bullets.
after trying an ER3 I won't get another variplus. I would rather get a 4 ball guide and use only 2 balls... and treats just had these in stock but they sold in a week.