Thanks Crazy,
I had also thought of doing this because I heard the FZ1 stock was stiffer and I'm ~220. But the FZ1 folks are dumping theirs and going to the R1 shocks, however I understand the R1 shocks are sprung lighter. that's why I decided not to go on the R1 route, because I figured at my weight, I'd have to get it rebuilt anyway.
Did you have stock at full preload before?
Did you measure your sag before and after? and how do you have the preload set now.
Can you post what tools you use for the fork rebuild. I've never done it before, but I have some Racetech 1.0kg springs on order.
The FZ1 shock has a longer stroke and a stiffer spring, preload and stiffness adjustment. The R1 shock has a lighter preload but more adjust-ability (dampen and rebound) and pressure with the gas canister.
I did have the stock @ 9/10 on the preload and still had 1.5" to 2" of sag.
Now 7/10, no more than 1" of sag. The biggest improvement I see is the line through the turn and my ability to accelerate into the next turn has improved by 100%. I had to
RE-LEARN how to ride my machine after 8mo...
I suggest going with the FZ1 shock, for me it was the solid choice considering my build and I never plan to take my bike to track day. As for the forks, its just a spring/damper unit swap. I found some FZ1 forks off a 2008, I just need to take out the internals and swap from FZ8 to FZ1 utilizing the FZ8 forks tubes and stanchions. I may take them down and have them set by a prof. after i get them swapped.
I suggest having them done if you have never done a fork rebuild. It is fairly complex... Hope this helps and happy SAFE riding