Never saw or heard of a SFG/Teardrop Warren. I think that handle is simply the way it was crafted at the time, i.e. just a bit more "cut".
Best, Capt. Chris
_________________________
Capt.Chris Stanaback
RKCC/RKCA Founder
RKS #016
NRA Lifetime Member
CAPTSTANABACK@aol.com
WEBSITE: www.captstanaback.com