Actually I just look at it this way if you add oil by same volume in different size forks you are raising the comp ratio by a greater amount in the smaller fork . So the way I perceive it it that 10cc in a 43 fork wold equal out to like around 15cc in a larger fork to add the same compression ratio raising benefit. Ill try to think up a way to show the math ,something like volume over displacement+ratio, given the correct data we may actually be able to convert that over intototal air pressure acheived but I might need some carbonation?fruitification in thre meanwhile .Maybe tomorrow in the shop Ill test it out for real and see what difference it takes to go 10mms in38/41 43/46/48s and Ill give you a cc measurement .Or add 10 mms to fork and get a height measurement . It would be nice and actually I really shopuld know this by practice and for trackside tuning. And to write it and make a table . It would be good for me to establish a rule for each indiviual fork type . Anybody who already has done this feel free to chime in . But doesnt it seem real simple when youi think about adding 10ccs to a 43 fork as opposed to 10ccs to a 48 fork ? dont you think the smaller sized fork tube would have a greatewr oil level which would then translate into a higher compression ratio. All of the oil is ganging up on the air and compressing it . Air is compressible Oil is non compressible .PEACEFROMTHEEAST