Apple Cracking

I was out thinning apples today and noticed a lot (maybe half) of my Hudson’s Golden Gem apples are cracked. It’s been pretty rainy of late, but I don’t see any other apples cracked.

This tree is on M27 rootstock and is the same one which cracked badly in 2013. Unlike that time, I can’t blame bagging here. I haven’t bagged any, as I’ve done a couple “real” sprays, though I’ll probably bag a few of each apple just in case.

Anyone else have cracking with apples on M27 rootstocks, or Hudson’s Golden Gem? I’d be interested to narrow down the cause. If nobody is having trouble with either, maybe I can figure it out in a few years when my nearby HGG graft (on a Sweet16 on B9) is bearing .