Well, I’m sure someone can explain it better than me, but I’ll do my best.
The Leopard, with the ability to rev higher, allows you to gear for real slow corners (like what Bandi has) so that you come off of them in the middle of the power band. You can gear it to give you maximum power off the corner then just over rev it down the straight.
The Rotax, having that limited rpm range, does not allow you to come off the slow corners in the power. At Bandimere especially the Rotax will be so low in the rpm’s it wont pick up until you are well out of the corner, then when it picks up it does accelerate hard but the leopard has already been going for a while. The difference is so great that the leopard is already long gone.
Now, Tagusa weights are set up for most tracks around the country, and most tracks are tighter than the ones we have here.
In state the leopard has the advantage at Bandi, the rotax the advantage at IMI, while as our other two tracks are even. This is a good mix to allow for both engines. And even at the weights we have been using, remember a leopard won the majority of races last year, with a Rotax only winning IMI.
Like I said I know someone else can explain it better, but I’m doing my best.
Greg