The main problem I have encountered is not the lumber specs, but rather the bolt specs. DFL is comparable to SYP in most properties with DFL being a bit stronger in the deflection values. I think the controlling factor on the SYP would be compression at attachment.
Generally speaking a 1/2"dia bolt will give you about 1 1/4 sqin of bearing per bolt (double ledger). Since deflection is not a factor, we should consider the compression at the connection point. If you do the calculations, I think you will find that 1 1/4" bearing for a 2'-0" span is likely plenty sufficient, even in SPF.
What I normally do is calculate the weight of the span being addressed, in this case 2'-0" and determine if the bearing per bolt is sufficient for the member. I think you will find that many times the required bearing surface is significantly less than you would imagine.
I would suspect that a 5/8" dia A.B. with a good embedment of at least 4" in a poured wall spaced at 24" o/c should suffice for anything in residential up to a 32'-0" span (16'-0" trib distance @ 50# TL)
I'll look and see what I can find, but I don't have my tables at home. When I get to work tomorrow, I'll send you a few things that I am sure you will find very helpful.