Herpstat Thermostat Max temp setting?

I have my Herpstat ND set to a day temp of 97 and an 8 degree night drop.

The probe on the thermometer says 87 and 77. The probe is laying against the back of the tub because the rack is a back heat design. Are my temps off? both snakes are eating fine. Should I turn the day temp up more or just leave it alone?

here is a vid its the same rack i got.

except i got the 34 qt tubs in mine. mine is the 15/34 version.

http://www.youtube.com/watch?v=IrXyLEitv_Q

is the probe on the heat tape itself or inside the tub?

on the heat tape

Also my flexwatt is the 11 inch I believe

87 is ok during the day. I like mine between 88 and 92 though. 77 at night is a little low IMO I would keep the hot side at least 85. Ball pythons don't need a night drop at all so you could even turn the night drop off and leave it constant 24/7

The video shows 3" heat tape, When using back heat id suggest using 11" for better heating of the surrounding air.

Upgrading size of heat tape should help with not having to set the herpstat soo High. Ive used back heat and never needed higher that 92 to get my 89 inside.

Ya I have 11" heat tape on there. Its not made specifically for 15 qts this rack is the 15/34 combo rack they make I just didnt have any pics of the rack so I posted that vid to try and help.

Whats the room temps. Cause in 75f+ no need to have it set at 97 unless the probe is bad.

Do you have a Temp gun on hand to double check inside temps

I don't have a heat gun. Im not sure I know it will be 70 to 72 here in a month or 2 because that's what the heat gets set to for the winter