In concern to the OPS 1.80 I have one on my ultrasport 1000 never could get it to run long enough to fly. When I got deployed I left it with one of the guys on the feild he changed the fuel I'll try to contact him and see what he went to I'm thinking to a heli fuel 30 and they say he cant get it over 2/3 rd throttle his words to damn fast. If I can get a hold of them I'll let you know exactly what fuel and set up. Sometimes difficult from Iraq something about bombs and communication sats. don't get along. make a couple of round around the field for me.