If you are using a gas blender, you can actually use both PSIG and choker line. Are you using a blender? If not, you may be focusing too much energy on flow speed rather then quality.
If you are, great! Based on type of tower you are using, system trunk line length, lift / drop and misc. items in keg cooler, you may require some 3/16" choker to balance out to 128 oz. / min. flow. Possibly you could deviate your target 22 PSIG slightly to eliminate the requirement for the 3/16".
Example: If your target is 22 PSIG (applied to keg). and the other pressure consists of a 120 foot 5/16" trunk line (12 PSI), Micro Matic Kool Rite tower (7.5 PSI), four foot lift (2 PSI) and one PSI for the misc. stuff at the keg station, then you would not require any choker at all.
But if your run is not this long, say 100', you might get away with dropping your PSIG to 20 and still not worry about the choker. Be aware that the lower the pressure, the more issues you may have with the system. This is why it is more beneficial to add choker, sometimes more than you need, and then increase your pressure to the keg to acquire the flow rate desired.
Sound confusing? Yup! This is why we spend over two hours during the Advanced Workshop to discuss. If you desire, send me a private message and I'll forward my phone number and we can discuss the details including how to complete the 3/16" choker connections.
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