Well, it's been awhile. This should be the last post/discussion on this problem.
Since the last post, I measured PCS resistance, the manual quotes 3.5 to 4.6 ohms and I get 5.0 ohms, but I measured from the PCM connector which added the resistance of extra wire and the trans connector. I think my number is in the ball park. Trans connector is almost impossible to get a hand on.
I connected a gauge to the trans test port and saw about 60-70psi at idle in park or drive and 115-120psi in reverse. About 90psi at a very low load 1-2 shift with a 10psi dip just before the actual shift. Medium load shift was about 120psi with 10psi dip. Both of these tests produced hard shifts and firm shifts and also with or without the dip. High load, WOT, tests showed LP at about 210psi at 5400rpm in 1st gear at the programmed shift point with tire chirping hard shift. I did this test twice with the same results.
The next day, 6/10, I drove it to town and every shift was a nice firm shift, just perfect. And every shift since then has been the same, yet a high load, high rpm shift is still hard-just the way I want it. I didn't adjust anything, replace anything and the only unusual condition involved was the two WOT runs where I just held it to the floor until the PCM shifted to 2nd. Kind of scary because I don't drive like that on a steady basis. Having something mechanical "fix" itself is usually worrisome, But I'll take it.
So, I want to thank you for your help and perseverance with my issue. Maybe the trans controls are similar to the engine controls in that they will do a certain amount of "learning" as the car is driven, makes a good story even if it's not true.
Dave