ORIGINAL: i3dm
i will give it a shot.
Will also try on the exhaust line fromt he valve itself. should make an interesting expiriment to compare them.
Sometimes experimenting is the key. Try different combinations of restrictor locations until you get the desired results.
On the other hand, if the cylinder size and/or mechanics of the gear are not matched correctly for the application you may never get them to extend or retract just how you like. In that case you may be forced to accept a gear that slams down in exchange for a clean retraction cycle. I have that problem on my big A-10 with it's heavy wheels and main gear.
It would be interesting to experiment with DelGato's plumbing suggestion the first post but I have not tried it as yet.
Craig