opinions on stroker kit?

Talked to my engine builder today. Block is going to get sonic tested before boring. discovered my 340 was already bored out to 4.080. So If it passes sonic testing It will get a 4.100 bore. That size of bore is going to add cost to my stroker build. I was told it going to be $1800 for the Scat 416 kit with that piston. So now I wait to here back about the sonic results.

How many of you out there have gone to 4.100 bore?