Back in 2002 I attended Cornerspeed rider school and remember Aaron giving advice on prioritizing money spent on performance mods. At that time, upgrading the rear shock was at the top of the major investment list. I know stock suspension has improved a lot over the past several years, especially fork components. Rear shock adjustablility seems to be better now with high/low damping and ride height adjustability.
My question is, what is the feeling on stock rear shock performance on the latest Japanese bikes (suzuki / yamaha)? Do todays stock shocks approach performance of pricey aftermarket shocks for street / occassional track day use?
I'm trying to decide if the gap in performace is worth the substantial invenstment for aftermarket shocks?