To all who have read this post,
I need to apologize to tackdriver for being to hasty to give a less than positive feedback to him on the recent transaction. I wrote a PM to him stating this and do so now publicly too.
I changed the grade to a B in the title mainly because of me. I should have inspected the laser grips more closely. Tackdriver stated in his PM that the laser was fine when he last operated it and without verifying that at the sale time, I have no grounds not to believe him. In my line of work, I see failures occur quite often, so I know stuff happens.
Again the SIG is great, the grips are useless in their current state, but I am in contact with Crimson Trace to find a solution.