Just playing around with a couple shocks I have here at the moment and noting the differences in rebound speed with no spring on. One is an Ohlins 888, the other is the Ohlins TTX. I noticed that the 888 has a much more profound effect on the rebound speed than the TTX and also that the 888 also has a lot more cross over where basically anywhere from around 18 clicks out to closed you get noticable effects to the compression circuit as well as the rebound. Alternatively the difference in the TTX is very little. Maybe a total of 1 second between having the rebound fully closed vs fully open, which lead me to wonder. Typically, around how many seconds are you looking at for a shaft to fully extend from fully compressed? Obviously that will change depending on damping for the individual and their spring rates, as well as for what the bike is set up for.. but ball park figure? 4 to 5 seconds? Faster? Slower?