Who prefers what? I'm sure more will lean toward the uth but I have noticed my girl seems to prefer to be on top of her hot hide rather then in side it except for the first 12--24 hours after a meal..
80 cold 88 hot with herpstat set at 95.5 and accurite reading 93 under the 1/2" of aspen.. IR reads 89-92 on top of it in the hide.. Yet I find her doing this lately