Anyone else have the new style Saber tactical Dual Tank kit leaking real bad where the little Allen screws on each side are at? I've got a FX Impact MKII and it's leaking bad at these 2 screws. If so how did you fix it ? Putty/Teflon tape?

Have you tried to put a bit of soapy water on the bolts to make sure the leak is coming from those bolts?
It sounds crazy, but many times even a leak you can hear or feel is actually leaking from a different nearby area.
Is there orings under there?