I think all bows are fast flight compatible. I have shot 8125 and fast flight on all of my bows for years. I have selfbows with no tip overlays that have only ever had 8125 on them. I always make my own strings and I add extra strands of dacron in the loops to thicken them up and soften the string loops as well, never had a problem. I have a fast flight string on my 1974 model Kodiak Hunter. I had always shot dacron on it when I bought it in 1974 because there was nothing else but change over to fast flight many years ago and it has never worried it, still going strong and she has been around the ridges more than a few times...Glenn...