Thanks for any help on this.

Yes... I can imagine that there might not be too much advantage on an SH - whilst on the Tmax there is definitely a sluggish period around 30mph that a variator fixes. I have toyed with a malossi variator for the little Burger who's acceleration is steady rather than scintillating.horobags wrote:I had a j costa on my sh 300, acceleration is improved, not vastly, it seems to rev higher, would I have another, eeer, no, the stock sh 300 is quick enough off the mark, I'd rather spend the £200 notes on something else.