Correct. If you were using a B16 head on a LS/VTEC, you'd still use the GSR Head Studs.
The difference is the length. The deck height on an LS/GSR is higher than the B16, and the threads are deeper in the block because of it. Really and truly, it's a matter of choose your favorite manufacturer. Although, reading as to how the threads are done on certain ones, how a stud is supposed to work, versus others, I have my preference.

Head studs are studs for the head. Main studs are studs for the main girdles on the crank.