Here in Italy is this a very common practice to put interleaved weights into your CVT. Works out pretty well and saves a lot of drilling out or putting 2-component putty reinforced with brass-shavings into (respectively) too heavy or too light weights. I personally prefer straight weights, but if I feel that there would be a little bit of revvs or end speed in it, then I don't hesitate drilling off or plombing in a half a gram. Or mix weights until I'm happy with my scoots performance.