I've always had to do a bit of setup fine-tuning with all my reissue Hagstroms, but most just needed some personalization.
Maybe a couple required some extra finessing...but then, I always take new guitars and do a light fret dressing and check the fret edges, lightly sand the fretboard, just to get it feeling a bit played in...and then I do the complete neck/action/intonation setup.
Not sure what kind of finagling you had to do...but it sounds like you get it dialed in now.
AFA the electronics...I've not had anything fail me, though I do like to put in better 3-way switches than what you get with them...but I see that the newer stuff is coming with better switches than they had a few years back. Also, on some the wiring/soldering was half-assed...so I would clean it up.
The Custom 58 pickups they use are actually pretty good, and you would have to drop some decent coin to see an upgrade, but then, sometimes it's just a matter of tone taste and not so much about quality upgrades.
I picked up a set of Kent Armstrong pups ( a bit brighter than the Custom 58) that I dropped into one of my Swedes...just for variety...so they don't all have the same Custom 58 pups.
I also have another one that I put in some vintage '70s DiMarzzio Super Distortion pups.
All the rest of my RI Hags are with their stock pups (I've got a collection
).
For the price...if you don't mind doing a bit of setup and maybe some hardware/electronics upgrades...they are great guitars, as the wood/build/finish quality is quite good.
Sorry....didn't mean to turn this into a guitar thread. but I don't often see guys here on HR with Hags.