There are a couple of questions popping up here that should be addressed.
First, Robb, what are you using now? Are you dissatisfied with your gluing system or are you looking for something that is dependable to start out with?
I use both the CornerWeld and the Maxim 5/15 in my shop and like them both. If you are doing a fairly large volume either of these are fast setting adhesives and should work well for you. I always build my frames in the evening before leaving for home. That way they can hang overnight and dry completely and you don't run the risk of breaking a joint if something unforseen happens. (And that isn't beyond the realm of possibility.)
If you are using an underpinner and you understand the adjustments for the machine, it seems to me to be difficult to actually "starve" a glue joint. You would have to apply a great amount of pressure to squeeze out all the glue to the point where the joint would fail. PVA glues are "wet" enough to penetrate the grain of many types of wood that are used for frame moulding unless you are doing alot of oak or ash or other hardwoods.
Maybe it would be helpful if you gave us some additional information about what your needs are or what problems you are now having with your glue joints.
Framerguy