Don't cut the hammer springs for the Tippmans they are supposed to be longer. The springs will get shorter when used.. To install them easier, set the hammer in the cocked position then insert the Spring then the Guide rod and back block , Compress the spring and seat the back block into the frame. Now reassemble the marker..Simple most of the time..

Well, the first thing on springs is the valve spring.

The lighter the spring pressure is on the valve seal the more dwell time it can achieve. Or, the longer it can stay open. Too light and you will have a hard time getting it to seal if the seat has not been set. Shoot it at high pressure for a bit and this should fix the leaking.

So, the lighter the valve spring, the lower the operating pressure,Within limits!! Too light, and you lose efficiency!!

Also, blow- back markers need enough air pressure to recock. Volume cannot recock a marker, only pressure. Keep this in mind when trying to go low with a Spyder type marker. It is difficult to do it with a compact marker and smaller striker marker; not because the volume isn't there, but because the pressure isn't. The volume is used to build pressure slowly in the barrel to shoot the paint.

The bulk of the air is sent up to the barrel and a small amount is vented through the exhaust port under the marker body above the trigger. If you plug this vent hole, the hammer can't travel fast enough forward due to back pressure, to hit the valve hard enough to open it and recock. The Spyder rocket valve fixes this problem! It is part of the patent. So you can plug the port under the body to gain the extra pressure needed to recock the marker under low pressure conditions. But you will have to modify the valve. Only for the hard core.

The next spring in line is the hammer spring.

It's only purpose is to drive the hammer forward with enough velocity to strike the valve stem with enough force to open the valve. Nothing more, nothing less. The colors are to help with identifying the heavier from the lighter springs.

The valve spring determines the dwell and the hammer opens the valve. The harder you hit the valve stem the farther the valve opens and the more air you get. It's that "mass times velocity" thing. But you can get a cross-over on the dwell by over pushing your hammer spring. I.E.,Too much hammer, not enough valve spring. This causes a loss in efficiency.

Next are the trigger and sear.

Well the obvious is that lighter is better!!

Next is the reg and spring combos, experiment !!!

sweet spotting your reg is interesting .. set your hammer spring and adjust your reg up and down to get the highest velocity with out going over 300 psi. Turn your velocity spring adjuster up and adjust your reg again, up and down to get the highest velocity. if you keep doing this you will find a spot where turning down you air pressure from your reg will cause your velocity to go up..allot!! once you have found this spot you can take your marker apart and turn the srp in on the rocket to reduce flow without losing velocity..

Spring FAQ's