At the rate my GAS is going, probably in a year or so.
I shot the family photo below at Christmas and three of the six are gone (to fund the BigMan build) and two others are half-heartedly on the block because of GAS pains. I'm eager to build a 70's J (with the bridge pickup reposition) and a "BigBoy" (a quad like the BigMan but with a JJ at the bridge and single J's at neck and middle). After that it might be time to build another P and flip the one in the picture.
I could see myself getting into a build-test-play-sell cycle but how often I can do it will depend on how much I lose when reselling a Warmoth parts bass.
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That's a pretty P, though it's got a few too many switches & knobs - what do they all do?