I agree, Ivan has many years of experience and gained knowledge, as hes been a known performance tuner of Japanese fours with a solid reputation. I guess that's why I bought his tune after I bought another tune that didn't fully do the job for me. This thread is about a DIY cure, and I say its any easy DIY: pull your ECU, send it to Ivan, and re-install it yourself when it gets back in a day or so. Instant DIY throttle cure!
Seriously though, this is the quickest and easiest way to do the job right and make your bike run it's best, The cost is really pretty reasonable (especially compared to my Ducatis!) and you are done screwin around... it's a no-brainer to me.
Guys I have no affiliation with Ivan and I have no reason to post this other than to help other Z900 owners, I'm just a happy customer that believes his tune is the best available.