| The rear Ohlins on my bike (R model) had piston rod damage, I thought about buying one off e-bay but got mine repaired/serviced, a bit less money than one off fleabay as it turned out and now I know I have a rear shock that is in tip top nick, not one of unknown origin, age, condition off Fleabay.
Ohlins worth it, IMHO on the road the ride is so much plusher, less stiction compared to the non nitrided showas, on the front of a 996 BIP and showa rear. But Compared to nitirded showa forks I couldn't tell the difference on the road. Didn't get the chance to fiddle with the 998s set up ( nitrided showas) as it wasn't my bike.
I can feel the difference with small changes on the ohlins set as well, unlike on the 996 BIP.
Ray. | 
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