I don't know about size and the type of reflector, but my SP10S is a 14500 (granted, the reflector was replaced from the earlier revision, the SP10A, but that's basically the same light, just different driver)
The other light is a Convoy S2+ which I've swapped in an XP-G2 and this is pretty much the same size reflector as the FW1A, I think even smaller.
So definitely a small light with no bells and whistles can have a very nice beam, just with a small enough emitter to accommodate the reflector's angle. Thing is, everybody is aiming for the highest lumen count and the highest candela rating. This causes some issues - the emitter choice gets bigger in size, and the reflector angle gets low, thus the emitter's die area heavily overflows the reflector's intended angle of reflection going way into what should be the corona and spill areas, basically throwing out the window the intended beam pattern and beam elements ratios - So how to fix it ? Simply.. adding blur into the mix - add an OP reflector and that's it.
My S2+ with its original emitter (XP-L2) was indeed brighter, but with the SMO reflector the beam was bland and undefined - swapping it to the XP-G2 made the beam pattern nearly perfect and defined with all the 3 beam elements in their own place and with their proper ratio, not overlapping and not blending more than they should've, just enough not to be an eye-popping sharp artifacting mess. And the slightest imperfections in the SMO reflector are enough to do just that.