Thanks for the info! I agree that a tunnel is the best way to go,Ive put Ekholm Tunnels on 2 97 MM 700s here and they work great.In this case I already have a good aproach angle and the only reason for dropping a bit is to get 9 Tooth anti ratchets in.I have access to a aluminum welder so I can modify the existing chain case here.It was the cooler part that I was wondering about.