It looks good.
Another single use Aerotech Econojet F motor I like is the F20. That would give it a nice flight to between the 1200’ you got on the F27 and the 1600’ you expect on the F26. And if the F26 works out, the F25 is just a bit bigger and has a white propellant.
Aerotech also makes the Economax line which includes the F67, but I think that one might be a bit fast for an Ascender. One failure I’ve seen with these rockets is the fins sometimes split where the two plastic halves are glued together if the rocket gets going too fast. You could wrap a strip of electrical tape over the leading edge if you go for more aggressive motors.
I Can attest that the F67 is a good fit for these Pros series E2X rockets, good kick off the pad, and consistent flights to about 1500 feet, so good for medium sized fields, and with that speed I rarely see weathercocking, I have flown my majestic, trajector, and ascender on them multiple times. Haven't had to tape the fins with f67, but I should as I did crack a fin on my majestic when flown on a G77Redline, but those are glued fro the factory, so don't have a very clean seam. won't hurt to tape and even some masking tape would likely work just fine and won't mar the finish.
G Motors can be flown in these easily as well, as long as you leave the engine block out, i fly my hobbyline reloads in there when I have a large enough field, but a G64 or 76, definitely puts it out of visual range at apogee, so good to have spotters.
