Another appt scheduled for Friday.
Still not cooling properly, clearly there's an issue somewhere.
Won't cool below 71 at bight & struggling to maintain 73 during the day.

What would a non AC guy look at, to see if there's an obvious problem?

Below is the gauge readings before/after the recharge on Monday. Not sure if they'll post in order or not

First picture looks to be the after picture to me. Unfortunately you are past the point of free internet help, you need an in person visit from a pro. I hope your guy on Friday can fix it, else you will have to call in someone else.

Update
A sensor 'bullet' for the expansion valve wasn't properly placed
Leaky filter door on the attic unit, sealed it off & going back to the 1in return filters.
Necked down a couple of the [per ac tech] oversized ducts in the attic [no buffer doors on the plenum]
Also adjusted the freon charge

Temp was 68 this morning & it was holding 74 while he was here, with both attic doors open.

His gauge was showing a cold side temp of just under 50*, where before it was 52.9

His recommendation for next steps is to have all the ductwork redone in proper sizes, and add a return on the far side of the house. Then add additional insulation in the attic.
Bit of sticker shock at the ductwork cost. That'll have to wait for a while.

Did you see the condition of the TXV bulb before and after the repair? As long as it was firmly attached to the suction line, preferably on a vertical section of pipe, orientation makes little difference, and typically it is mounted at the factory. I thought the original repair was a new factory coil?

I don't have an image of leave Before & After. The guy said it was just installed improperly. It's on a horizontal section of the pipe

Original repair was a new coil with an internal expansion valve. I believe it was a RUUD coil that day installed.

Glad you have some professional guidance give here.

I would be curious what they say about the recommendation to replace the ducting. My non expert thought is that was out of the blue?

What say you guys? Is 250's service man on to something with that recommendation?

He said that a lot of it is way oversized for what it is supplying.
Iirc one example is 8 in supply duct into a bathroom, he said it should probably be 5in.
I might be a bit off on that

Wait until you get the cost of redoing the insulation, should be about a $1 a sq foot at
least that's the going price here, we just did it and hope to see some improvement.

If you are going to have some duct work done, get quotes of course and alternative recommendations, see if the additional return is a recurring suggestion from others if so might be a good idea to do it at a minimum.

Do the insulation AFTER you do any work in the house, ducts, new electrical for lights of fans.

If you're going to be redoing insulation, check with your local electric company. Around here, the electric companies offer a program where they offer subsidized or free attic insulation. Cuts down on energy demand from heating/cooling.

Can you post up some more pics?