| Umm, the old dynamic Vs static, I have ordered a leak tester as recommend by Kev, so I will be able to find out more when it arrives.
I have stripped the bike down in preperation (removed - fairing, battery and tray, air box, carbs etc). I also removed the rocker covers and cannot get my smallest feeler gauge 0.05mm under the inlet shim on either cylinder and only just get it under the closing shim though all four shims can be rotated. So perhaps that's part of the problem.
Shame I didn't know about your engine earlier as I brought a winter project engine today, was advertised as a 1999/2000 engine with approx 8000 miles. With my limited knowledge spotted it was a 600SS engine, I now think it's also 1994/1995, but Kev is helping me identify the bad boy.
I will post the leak test results when known. | 
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