Air managment

right now ive got a single air zenith compressor with one 5 gallon tank, i want to upgrade and was wondering what kind of system i should use. i really dont wanna hassle with an EDC so im going to buy another AZ compressor but my concerns are on what kind of tank setup to go with. i want the system to fill up quickly so would it be sufficient to run both compressors into a single 5 gallon tank, both compressors going into 2 seperate 5 gallon tanks or just run a bigger single tank?any suggestions apreciated i cant stand having to wait for air just after hitting the switches a time or two....

id run a 12 gal. but i just like all the play time and 2 of them should do the trick, if not run 2 5s and 2 comp.

10-12 gallons would be great with the 2 AZ's. If you're satisfied with the speed of your setup now, imaging that same speed pretty much.. but twice the play-time. It's up to you then how you'd want to do that, (2) 5 Gallons, (2) 6 Gallons, hell.. even 1 of each for 11 gallons lol. Just depends on the room you have available and how you want them to look mounted.