Ben, just a quick note to say thanks for the work you did on my Z1000. I'm riding it weekly for an hour or so and it's running beautifully, starting instantly and with no surging once warm. Oil leaks have ceased, although the fuel tap still leaks a bit.
I'm following your advice by adding a small amount of Wynns Injector Cleaner with each tankful. Also revving it to ~7500rpm for 20-30secs (in 2nd !) on each run, which sounds awesome. Not sure the locals agree.
The solid rear disc looks great and has restored braking performance to the OEM pathetic level.
It's a happy camper and so am I.