I'm trying to decide between two comprable sleds and really don't know that much about them in with the differences and benefits are to each. One is a 2002 ZR 600 EFI the other is a 2002 ZL 600 EFI. Which one is more reliable? Which might be better on gas which might be faster anybody have any thoughts prices are comprable to mail just comprable like I said I just don't know that much about those particular cats. Thank you and think snow!!