I've got 1/2" valves and lines on my setup and want to see about slowing it down now. i found these and think they should do the trick for me.

http://www.suicidedoors.com/node/957

http://www.suicidedoors.com/node/951

My question is (maybe a stupid one but oh well ) how many of these will i need to buy? I have 8 valves total. 4 for the front and 4 for the back?
Am I gonna have to buy 4 fill controls and 4 dump controls? Any help would be appreciated. I want a slower lift and dump now.

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Yea you got the right parts I use regular ball valves from lowes to slow down my drop not sure if I would trust them to be air tight for fill lines tho

 

i just ordered the fill and dump controls but from another place where i found them cheaper and with free shipping.

https://waylayedinc.com/