If he was soaking sooo much, he shouldnt have a problem shed
What is your humidity level at? You might try putting the water bowl partially on the heat mat
Soaking late in shed can cause the fluid they make between the layers of old and new skin to break down, as well as making the skin too soft where it just rips and shreds when they try to slide it off.
-Karl
0.1 Wild type Bp (Eve)
1.0 Pastel Bp (Aeries)
0.1 Russian Ratsnake (Vasilisa)
0.0.1 Bairds Ratsnake (Romeo)