[Hedgehog]

My 2016 Montana 3160rl has always had less than adequate air conditioning and was wondering if anyone here has any advice. Let me first say that I like it cold when I sleep. I set my front ac between 64 and 66 at night and the rear between 66 and 68. I sometimes wake up sweating and when I go down in the living room it is cooler down there. I always clean my filters, I did the pvc pipe mod in the rear ac, I used foil tape to close and gaps between the hot and cold side in the front ac and I have replaced all ac registers with ones that I can close the louvers. During the daytime the ac’s seem to be adequate.
Should I maybe trouble shoot the front thermostat sensor? Any input would be appreciated