I have read the boxes and the stuff on the website but nothing substitutes
for a somple answer from someone who has one.

I understand that Thermostatic pressure balance shower valves have a limited
range of temp, you can't get full hot or full cold no matter what.

But what about regular pressure balance valves.

Can you go to full hot and cold? (it just regulates at that temp better but
you can at least get cold and hot)

Do these valves always run at full volume?