Troubleshooting help: Turbo has been running smooth, always hitting 7 lbs exactly. Had a great trip down to San Rafael Swell back in late April and it was stellar. The other day I took the cruiser out of storage to pet and give her some lovin. You know, wash, wax and stare at her beauty for a bit, I do always have to take a 2nd, possibly 3rd turn around look whenever I park at the store

. Boost would not go past 6lbs. Next, I pinched off the waste gate hose and took her for a quick cruise to see if she was losing boost. Sure enough, boost would go up to 4-5.5lbs and quickly drop, then build, then drop. Hoses are all perfectly tight. There are no leaks. I'm extremely OCD on these things to the point my family thinks I need counseling. There is no dust in my engine bay...

Anyhow, you get the point..
My analysis is this......either the waste gate spring is softening or possible waste gate has a minor issue stuck open a bit? Anyhow, Joey said to post here and he would be along shortly. Any input or brainstorming would be appreciated.
My next idea would be to insert a dial in the waste gate hose to tune the pressure exact. However, this would not serve the purpose of fixing the issue unless its just a soft spring.
or....LS3