Looks alright to me Jase.
Here is an animated GIF of your red channel with my image in HA. 2MB
http://d1355990.i49.quadrahosting.co...10_03/jgif.gif
I made it high res so the 16" RCOS was not disadvantaged.
We are comparing 300 mm APO lens to 3360 mm RCOS.
Bert