I have 5/8th valves and yes nitrogen is a lot faster then air. Its a lot more expensive as well. I will be running air as well but I am doing the nitrogen stuff first then I will set it up with air too. I made my brackets out of steel. we got a new mig welder and it saved me a ton of money. The brackets are about $65 each if you buy them and these cost me about $35 and 4 hours worth of work total for all of them. I only need the bags and a flip kit and I have it all. I used a bag my friend had to design my bags. I dont know about cylinders but if you use bags in the bag I suggest that you go with firestone bags. Are you doing a 10 switch setup? what size valves are you using? Do you know how much PSI it will take to lift the front up? I think its gonna take me about 90-100 psi just to lift the front and prolly 160-180psi to get a good hop.
