Appreciate your replys!
Actually, I just ordered the Pentax XW 5mm. I read some reviews that Pentax XW have a more neutral color tone then Televue. I think that is important when my main observing interest is in double and variable stars like ruby carbon stars.
Now I am searching for a eyepiece with a focal lenght that fit between 24mm Panoptic and 5mm XW.
I will observe for some months before I decide if I need to buy another short focal length eyepiece, maybe a 3mm, for higher power.
I did not go for the Nagler zoom because I think the small AFOV may be a problem as I use a manual alt az mount.