Because
#1 he recommended low compression.
#2 because he is willing to go .060, and did I miss that he sonic-checked it? LAs are "lightweight A engines" for a reason, not all will successfully take .060..
#3 Machine work already done to the block?
the "bore-ability" should have been the first thing to be checked, and no machine work started until it was known that whatever size decided on, would work. Now, you are stuck between a rock and a hard place. I mean I really hope it works out for you, But from where I'm standing right now, I would be very uncomfortable.
#4
