I would swap 1000 to Original any day of the week.
Especially in 2023.
FR1000 used to be better, say 10 years ago.
Recently I've heard folks having lots of probs with 1000, including my new MIJ ESP Edwards.
I had to return it and got back answer that they haven't ever seen such wear in a new trem.
Shop replaced it with OFR without cost and this new trem is better, way more better.
1000 had wonky fine tuners, but the main issues was trem not being able to stay in tune at all. Slight push backwards -out of tune, Slight push inwards -out of tune.
Seller is reputable (well, they replaced 1000 with OFR without extra cost) and they said these new FR1000 trems utilizes softer flow steel and hardening process isn't as good as it is with Schaller made Trems.
I believe them.
I see Thomann selling guitars with 399€ with FR1000.
There must be a valid reason behind the price.
I know many people say FR1000 is same trem than OFR, just made in Korea, and they mean exactly the same in quality, expecting to have basically OFR.
I must politely disagree even if they have a good unit.
One thing also is that they might have FR1000 from earlier years.
Bad news from the seller company was that Gotoh and Schaller both as well seems to lower their quality.
I had to replace the original Gotoh springs since they kept horrible noise, something Gotoh springs never did before. I've changed few sets of trem springs before without an issue.
I have 2011 LTD Elite with FR1000 and I've played that guitar h**l and back, still awesome. Keeps the tuning no issues whatsoever.
I believe FR1000 have degraded in quality recent years/recently.
It's not ESP's fault they build awesome 2k guitar and get their trems from Korea which used to work just fine before.
It's a rather new info, not much info about 2023 FR1000 quality yet.
We'll see what 2024 brings.
Hopefully correction to quality.
Floyd Rose btw drops "made in germany" stamp from their German made OFR's from now on.