Skiddins you'll find the front motor mount is a tuning aid for flex as stated by xray them selves. I last night stripped a spur, the car in front crashed and I hit him it happened so fast I could of done nothing. I have made some big mistakes and got away with it. I have run 64dp since I started many moons ago and never stripped a spur, so would happily say I know how to mesh it. If it is meshed properly and u don't have any big mistakes I honestly can't see how u could strip a spur. I will say xray spurs are not perfectly round so always check ur motor mesh at different points of the spur.p.s I'm not teaching how to suck eggs when I say this. J