firstpass: I would proceed a little cautiously, unless I'm mistaken, there ARE some tests required to use B2.1 SWPS, even though they may be only performance qualification related instead of procedure qualification related. If you want some excellent insight into B2.1 SWPS, check out this website: www.sperkoengineering.com
I think it would be well worth your time to see what is said about SWPS in the above website!