Help turn Beam Weapons (Projector) into a Perk/Technique?

[Phantasm]

I've been going through things for my space opera setting, and I want to make one change:

Beam Weapons† (p.*B179)
The Projector specialty in the Basic Set does not exist in the Ventureverse (a Technique or Perk to cover cone attacks will be forthcoming in the future).

What kind of penalty should I apply to a pistol or rifle that produces a cone attack (for example, either a sonic weapon or a blaster shotgun, or for a more notable example a Star Trek split-beam phaser)? And would it best be bought off with a Perk or a Technique (probably an Average Technique)?

[Varyon]

Away from the bulk of my library, but you might want to consider checking out "Alternate Guns Specialties and Techniques" (Pyramid #3/65). In addition to simplifying the Guns specialties down (to pistol, longarm, and LAW), I believe there's also a Technique for using Payloads (explosive rounds, gas, tangler, etc). Offhand, I'd probably say that a Cone/Projector Technique would have the same default as that Payload Technique. Note if you have "explosive" beam weapons (like a downscaled version of the BFG from the Doom series, for example... or even just the BFG itself, that just has a much larger explosive radius than most), those would use a different Technique from the ones that fire cones, but it would be the same default as Payload for firearms (because it basically is a beam weapon version of Payload).