I guess there is a company called Warranty Killers performance in Louisiana that is offering a tune for the 1500s. I contacted them and of course they wouldn't tell me exactly what they did, but they supposedly addressed the transmission slipping issues that some people are having on steep trails. Their ratings aren't the greatest but reading through them it seems like mostly customers service complaints and not their products. Anyone dealt with them? BTW I emailed Gilomen a few days ago, they said they were close, but still working on the tranny tune.