Big- Nice pics! Awesome thikness and shape on that beast!
Do you wear boxers or do you wear underwear that holds the dick in place? I've noticed boxers is the best way to go in ADC. Also sometimes adjustments are needed every couple hours or so. You might have it too tight based on what your saying about the underside of you penis hurting under the clamp. Also sitting down for long peorids of time can make it uncomfortable near the clamp. Also what is your base girth, Flaccid? and how many notches do you have showing when your in ADC. I usually am comfortable with 3 or 4, sometimes 5 notches, 5 only if I'm standind up.
My penis gets a little cooler in ADC, but not much. Also your only in your 2nd day of ADC and you can have it on for 1 1/2 hours? That is good. Remember it takes so time to work your way up to 4,5,and 6+ in ADC. You have to condition your dick for it. The looser it is the longer you can wear it with out even knowing it is there. The tighter it is, you have to make a lot of 5 to 10min trips to the bathroom to adjust the ADC.
What Ghost Dogg said about the pee is correct. I can pee with the ADC on, but sometimes it is so tight I have to kegal my ass off just to get it all out. So what i do is loosen it a couple of notches, then piss. After that I tighten it bace to where it was. Arouse myself to a partial boner, the push the ADC back towards my base to engulf my penis with blood again. Last I make the proper adjustments, let my erection angle go down some before I walk out the bathroom, and go about my day!