fierbyrd

I have a 93 touring with 100kmi, two of the shocks are leaking so I know they are shot... But I was able to get a set of shocks and struts from a R1 with low miles (26k), my question is, b4 I go to the trouble of installing them is there some way of making sure they are in good shape(the shocks have no obvious signs of leakage and they are hard to push in and they return when released). Is there a height the springs should be unsprung???

Thanx in advance...