I've been using nylon HS545's (61 oz @4.8v) everywhere but the rudder for several months with no problems. I went with a 635HB (karbonite, 69oz) on the rudder because of the added stress of the tail wheel vibration. Although I just upgraded my electrical to 6v LiPo so the 545's now deliver 76oz.

We went through this repeatedly on the Funtana main thread. Nobody that said you need more was ever able to back up their statements with real data. Maybe someone can here...

Clark