I believe the filament of the Strion bulb is of the wrong lenght for the Scorpion reflector. As stated, it goes from pencil beam to swirly beam, without a good compromise.
I have got a better result with a Strion bulb in a P60 reflector. Better focus, and less yellow than the Pila 3.7 Volt Lamp assembly.
It is a law of physics that 3 Volt bulbs have about half (55%) of the efficiency of 6 Volt bulbs.
Unless they are carefully overdriven, as it is the case of the MA02 (4.4 Volt 1.4 A) in the SF A2, the total output with a 3.6 volt bulb powered from a single Li-Ion will never satisfy hard-core flashaholics, IMO.
Anthony