ACEL is very useful, I see. I will update a few saves of mine right away. I have to say, ELEC is very neat too - lot's of uses, dazzaling effects and plenty of potential.
It is a modified version of my "Ultimate Hybrid Laser" with added ACEL and GPMP resulting in my fastest design yet. It can still be used as a fast laser even if Newt. Grav. is turned off so I think that's a bonus.
Edit: Not sure if it's good for fast lasers though. And BTW, fast lasers are almost always not efficient because of their sheer speed. It just appears to go through the target or sumink.