2016 Switchback pro s with Ice Cobra track

[Glenbo]

I just purchased this snowmobile, the former owner just put on a brand new Ice Cobra 1.6 track on it & drove it a few hundred miles. He did not regear the chaincase. I know there are a few threads about regearing for this track but my question is what should I expect for low & top end if I don't? I am strictly a trail rider (faily aggressive) & around 200 lbs. I like pre studded tracks but not sure the Ice Cobra's longer lug would have been my first choice for trail.