I think again, and I mean no offense, you've just got new keeper nerves. My guy spends the bulk of his time in his cool hide or the one in the middle of his enclosure. Typically I only see him in the warm hide after a meal and even then only for a couple of days. Your snake knows what he needs and your tempratures seem fine especially if you're using a good quality temp gun and digital thermometers, so I wouldn't worry too much about it.
As far as him feeling cold to you, remember that our normal body tempratures are 98.6 degrees, so anything cooler than that is going to feel cold to us. It doesn't mean his temperature isn't where it should be, just that he's cooler than you. (no pun intended)