Have got to hand it to everyone and say thanks.
Lurked in and out for a bit.
Just found this thread the other day, have had a ev-180 for over a year with a mag-7....never been happy. After reading these posts, decided to try a 1262, remove the gate, raise the skimmer so the output id just over the sump level, cleaned out the tube under the injector...just turned it on and ....WOW. Night and day already and it's an hour into it, still tweeking it. The air is about 2/3 rds down and looks about right at the moment.
Always felt the mag-7 didn't have enough to it. This may just be the ticket.
Thanks again to all.