Hi, I am considering the Freud 97-210 3 piece cabinet door router bit set. It sells for $159.99 on Amazon. One feedback says a router with at least 3 hsp should be used and it Must be a variable speed router. I have two routers over 3 hsp that I planned on mounting in my router table, using these bits. Don't think either are variable speed. Any thoughts on this variable speed issue and also if the price is fair. Thanks, John