[dsraven]

the extra keyway is a great idea. sounds like they have you covered. you likely won't know what the plan is until they actually check the line bore so they know if the rest of the bores are where they should be first before they worry about the front one. no use spending time and effort to fix that and then find out the whole thing could use a line bore. knowing that first will likely change the plan A, B or C decision. kinda like knowing you have a bad spot in the road that needs to be fixed. no use spending a bunch of money on that bad spot and then checking the rest of the road to find it all needs paving anyway. might as well just pave the whole thing to begin with and not pave the same spot twice, if that makes sense?