"Others have had issues with cracking re-appearing, but I have not had any issues with mine."
I did. My boat had the stringer mod when I bought it, along with a cradle. I don't know when it was done or why (stock 502 boat, 2001) but a couple years after I bought it I noticed some tiny hairline cracks on the bottom under the stringers. In theory, they could have been there when I bought it as they are hard to see unless you take a bright light and crawl under the boat, so possibly both I and the surveyor missed them. Or possibly they showed up after I began running it.
Very minor, but they make me worry about what could be in the future.
Don
'01 22 Classic, 502/B1
And a bunch of other stuff
"If everything seems under control, you're just not going fast enough" - Mario Andretti