Approximately 4 years ago I inquired about a ShopBot for doing sink cutouts in Formica and Corian countertops. I got many positive responses and encouragement from this forum. This resulted in acquiring a 4x4 Bot from a most helpful seller (Monte) and resulted in doing away with over 100 templates. In addition we did all kinds of wood shapes and patterns, and now have acquired a 48x96 Alpha which gives us larger project capabilities. I have to say I am a dinosaur owner surrounded by capable people and would now like to upgrade further with a spindle to replace the Porter Cable 7518 production router. I don’t know much about spindles except the forum says they are great. I would like to know how to specify, acquire and maintain one. Are rebuilds worthy of the risk? Any help once again would be most appreciated. Thanks for all you feedback and help. Oscar/ Parkmead Products