Hi, just picked up a Synergy FBL head which I gather is suitable for most 50 size helis with a 10mm shaft. I was going to use it on a Raptor or Sceadu evo but the driver arms seem to be made for much bigger ball links than the standard 4.75mm diameter balls on these two helis. I have looked all over this site and cannot find any alternative driver arms and I cannot fit a bigger link balls than the standard 4.75mm ones because there will not be enough clearance for the driver arms to operate properly. What gives?
