I've done it consistently with Asian-mfr'ed guitars. I have a nice Hammamatsu (MIJ) Ibanez AS-180 (like a 335) and swapped out the Ibanez pickups for SD Jazz and '59. Replaced the Asian P-90s on my daughter's Washburn J-8 (hollowbody) with a Rio Grande BarPack (JaaaBar in the neck; BluesBar at the bridge). I have a nice MIK Gretsch Synchromatic jazz box with floating mini-bucker. Swapped out the original PU for a genuine NOS Gibson Johnny Smith I got offa eBay. That one truly transformed that guitar into a sweet, smooth jazzer with all floating top with a total investment of 750. I also put Fralin P90s in an Epi Casino. I've never swapped PUs on a Hamer. But if I had it to do over again, I'd have swapped out the hot Firebird-style mini's in my 6-string Eclipse for the Duncan Vintage or Antiquities versions, the Phantom Custom might benefit from something a little sweeter and darker, and the Anniversary might do well with a Duncan Jazz or a Fralin Unbucker at the neck. It's not bad as it is, though. The Newport is keeping its Phat Cats. I may get locking tuners for it someday, though. And I like the stock MFD pickups in my G&L ASAT Classic Semihollow.