I’ve halved my starting crotch distance to the ground since I actually started stretching everyday 4 days ago. I’ve only worked on my side splits thus far, since my adductors tend to be less flexible than my Hamstrings. (But mainly because it’s more comfortable to hold a side-split position while watching television. ^^)
No problems/persistent pains that shouldn’t be there thus far, and I hope it stays that way.