I need a diffusion gel for the spotlights on the next show. The spotlights (2 Altman 1000Q's) are currently focused to a hard edge, and I want to soften the edge of the beam without too much light loss (as they are not very bright) and with little spread. My problem is that I have little to no idea of what the right diffusion to use would be. The theatre's throw is relatively short (only about 75 feet). Gels that I think might work are L258, GAM 10-10 or 10-20, or maybe even R132.