Well here is a update.
I got my baby back for the shop with a pat on the head from the gunsmith. I keep it well maintained and it showed he said.

I and asked if he found anything else worth replacing.
Recoil spring seemed a little weak, so he put a new one in. I could not tell the differents.
But he has a kid in private school.
Off to the range 100 rounds of full power loads
FMJ 230gr with 5.2gr bullseye.
100 rounds
swc 200gr with 4.8
50 rounds
swc 200gr with 3.3
NO PROBLEMS I used only the new 7+1 Sig stainless steel Mags.
I wanted make sure it is not some defect with the firearm first then i will test it with the aftermarket PROMAGS 10 rounders.
A couple of more trips and that should make it clear the gun is functioning
I read about some SIGs with a problem when the mag from another model in the SIG line is used. It will over insert and do damage. The author did not mention the P200 as one of these.
But there is no other mag that could be used in the SIG line for the P220.
Anybody heard anything similar?