Bagged woes

[IndyBowtie]

Alright need some bag advise. I fully understand every person that replies will have a diff answer but that's ok.
Have a full manual system on the '48. 8 valves and wired controller in cab.
My problem is getting the truck level, side to side at ride height. I fight it every time I drive the truck.
What is the best method for ride height leveling, outside of a AccuAir sys?
Seems that having the 2 on the rear for example, plumbed individually, raise and exhaust at diff rates. Thus I Am always out of level side to side. Thought I had it perfect the other day.based off of quick look and the gauge pressures..got home and went to the back to check...one side was quite a bit higher than the other. That's a good look!
Thinking about putting a tee inline and plumb the rear together , as well as the front. But then you depend on the bags sitting at the same height at a given pressure and they probably won't!
Am I doomed to spend another grand and get the ride height controlled sys?