I use my Fm34 beamshaper with my C3 The p90 lamp in the C3 boasts good throw (although probably not as narrow as a 1w led) the beamshaper takes away all the parts of the beam and just puts out a blob! it is awesome. there is no hotspot, no corona, no spillbeam, just a seamless blob of light that is superb for close up work. I use my C3 with beamshaper when walking at night, i use it to see what im about to step on and for this it is simply perfect! Im a big fan of beamshapers because they give me the two things i want, a setting for throw and a setting for flood. i would suggest that you buy it, if you dont you will always wonder what could have been!