It's not too good of an idea soaking them. You know when you have had your hands in water too long, they wrinkle and get dry? The same thing happens with them and will make them have bad sheds.
If your humidity is in the 50-60% range and you have a humid hide provided, there is no reason why your snake shouldn't shed alright. It would probably be best to not soak him and just maintain good husbandry by keeping temperatures and humidity in their appropriate ranges. If he doesn't have a good shed, that is when you will need to get a shoebox sized plastic tub with lid, add about 1/2"-1" of lukewarm water, add snake, put the lid on, and place the whole thing on the warm side of the enclosure for an hour once a day until all of the shed comes off.
Mainly look for areas such as the tail tip, eyecaps and any shed that encircles the body. Hope this has helped![]()