This will soon be page 4 in my view so getting impossible to know the whole series of events that worked or didn't.
You can just refer to this thread with a link to it like this..............viewtopic.php?f=1&t=13660&start=40
Some bullet points for dual systems with rear TXV set ups.
* Take pressure and observations with rear OFF. X valve can hog the refrigerant already condensed and throw you off.
* Adding fans is best to be well thought out IMO. I would never personally. They can fight each other if you leave both OE set up and add something. Think two table fans - do you get more air if you put one behind another? Maybe, maybe less. Near impossible to know till attempted but know that OE designs are almost always well engineered to be adequate at least.
Again on fans. Think: If adding them vs bolstering the set up you have you may create a vacuum which wouldn't exchange heat as well. Cornbinder mentioned feeling for temps already exchanged by hand and can agree with that.
If double fans in order not side by side think airplanes. Why do they put propellers/engines side by side instead of in front of each other and save space? Doesn't work that way without incredible engineering.
* I'm sure already said but if you use water misted on a condenser you are "transferring heat" more than any fan ever would so would know that is the issue. It will improve with water but by how much matters vs left alone with existing fans would be the clue if that is an area that needs anything or not,
PS: Site is remarkably slow for what it once was. Unseen is it's under constant spam which can be removed before it appears. There are some snags in the sign up I'm sure that are causing folks problems as well that I can't fix. BTW - I think I'm now the only one with a mop (figuratively) for the clean up of the junk that comes daily,