I'll be installing a Line Lock and Adj Proportioning Valve along with my C5/C6 brake upgrade.

Tobin said he sells the Summit (Wilwood) type; see here:



Any reason I might consider a different style?

Any suggestions on a Line Lock? They units themselves seem to vary in price quite a bit, but they all look very similar. Jegs (B&M) is $40, and they go up from there. Some cost more if you get an "install kit" with it.