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Thanks for the input Brandon and Daniel. Every bit of perspective helps.
In my researches I'd noticed that Tele Vue's website suggests an 8mm Ethos or 7mm Nagler as the high-power EP for a 6"-10" Dob. I guess that assumes good seeing conditions. Nonetheless, I've been pretty impressed with the views of Jupiter and Saturn I've been getting with my 9mm Plossl from the backyard. Given that I'm close to the beach and therefore not smack bang in the middle of a built-up area, perhaps the light pollution where I am isn't as bad as elsewhere.
So my rationale has been, if I'm getting pretty decent views with a standard Bintel 9mm plossl, surely I can go for more magnification with far superior optics. Obviously there's a limit to this trade-off, but I want to push it as far as I can.
Hmmm, do I go for the 6mm or 8mm Ethos .... (!)
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