Low Oil Pressure Light on Cold Start

[ecp]

Two oil changes ago, I changed my oil filter to the LN spin on adapter, and used the NAPA gold filter that they recommend with it. used my regular oil and everything was great until the next morning. When I started it up, it was clanking and making all sorts of nasty noises, and then the oil pressure light started coming on. I immediately shut it down. When I re started, it was smooth and fine, I drove away and the car ran great. This would recur only when the engine was cold. Me being nervous, ordered new oil filters, and the upgraded oil pump spring and valve. while I waited for the parts to arrive, I ran to the auto parts store and grabbed a new filter, and installed it. the issue went away. I drove the car for about 2000 miles, decided it was time for the new pump spring, and new oil. I installed it and for the first two days it was great, every cold start was extremely smooth, no clanking or lifter noise like usual. However, suddenly it has changed again and is back to the way it was. If the oil light comes on and I immediately shut it off and re start it, all the noises go away and its fine. Everything was fine with the oil change.

I am wondering if the spin on filters are collapsing internally? I'm only installing them hand tight and I believe I had overtightened the first one. I was planning on replacing the filter again, and the oil pump hex drive, and possibly the pump gears as well. I can't seem to find anything on the internet describing what I'm experiencing.
its a 2003 Boxster s with almost 138k miles. any help would be appreciated!