All I can say is borrowed time my friend thats what you guys are on. But then again what kind of set ups are you using? Computer radios PCM receivers? If only have a 4 channel or 6 channel non computer you prob wont have an issue. I used that set up in my 9cap 8 channel receiver and hitec crystal and couldnt get it to range check past 15 ft. after 2 failed attempts to use a hitec crystal figureing I could of had a bad one I ran across an article that explained the multipliers in the crystals and their compatability. NON Futata biased i assure you. Any way seeing as though my LHS only had hitecs in stock on my channel I had to order a futaba crystal from tower. Since then no issues at all. But thats just my own experience. Like I said before for the matter of a couple of dollars futaba to hitec thats a heck of a chance to take. bottom line is if there is the slightest chance that there is a compatability issue just the least little bit why would you press the limits. we as model airplane piliots already do every time we put a plane into the air we take that big chance that nothing will happen. I dont want to increase those odds when i fly.