Alex Steve Massey from Astroshop your cousin eh, sorry about that.
I have the Chromsphere model, initially I had it on a 50/330 f6.6 scope and awesome views till I got a Opticstar 80/400 f5 then I got the double WOW factor.
Just don't like having to wait till it warms up to view with.
I use a Vixen 40mm eyepiece for full disc views.
With the 50/330 I had real balance problems with the diagonal Quark and eyepiece bigger and heavier than the scope itself.
I had to return my Quark to Daystar to be tuned and a USB port problem which they fixed and it came back better than before I sent it.
I have the Quark and scope mounted on a dual mount side by side with a double stack PST, but I've just recently finished setting it all up and haven't had a real chance to compare.
Alan