I agree with the others. I think the snake looks great in that picture. You can bump up a bit during the warm season and back off to the same schedule. I guess if the snake looks good and is not giving obvious signs of hunger things seem OK.

As you can see there are some differing opinions. I think the bottom line is if anybody can read the behavior and see whether or not it appears hungry, if it looks good "loaf" shape and muscular and sheds are good things are going well.

If the owner is not in tune with those things, they need to be and go from there.