I do not agree with the philosophy of automatically boring a block to 4.030. I believe it should be honed or bored to size, just enough to clean-up the cylinder walls. Many blocks can be cleaned-up with 4.010 bores. Of course, this means having to custom order the pistons. This is no "big deal" as far as I'm concerned, but convincing some people to consider custom ordering pistons is difficult.
No stroker kit offers pistons with full round skirts. As far as I'm concerned that means limiting engine speed to whatever is equivalent to 3600 fpm piston speed. To go beyond 3600 fpm piston speed I recommend full round skirt pistons. Nor do I agree with a rod length to stroke ratio less than 1.6:1, wrist pins that intersect the oil ring groove, or pulling the wrist pin out of the bottom of the bore at BDC. In other words, the only stroker kit I can agree with is 3.75 stroke with a 6" connecting rod.