Randy, You are preaching to the choir. That is exactly what it was designed for and it also helps the glow plugs last a little longer by not shaving little aluminum particles off the backplate and rod.
Before I started using them, I was wearing out three shafts and two P&C assemblies per engine per year in Foxberg race practice. After starting to use them, I have yet to wear out a shaft and the P&C assemblies all last one to two years.
I can't use them in an actual race as they are not "STOCK" but I use them exclusively in practice for foxberg and foxy hazle race. Oh by the way in those events, oil content is 20% nitro 10% and we run screaming lean !! (not good for fox stunt 35s).
Some time, I would like to meet you and jaw a while face to face. re the Hemi Heads. Perhaps at Brodak's??
Bigiron