Tail rotor drive: V belt vs cog belt.

[royden]

I've been thinking about this for a while and thought I'd see if anyone has ideas or info about this. I've got a Rotorway Scorpion project and was wondering if changing the V belt tail rotor drive to synchronous/cog belts like they did with the Lonestar helicopter. It seem to be the closest to a shaft and gearbox drive without actually changing to a shaft drive. Any input from the forum? Is it a good or bad idea?