Well, made it to Mt. Pinos Saturday night for a test of the 12.5" with the new coatings and new diagonal together.
It was visually stunning.

We had 11 club members present and those who were familiar with my scope all agreed that the scope was brighter, crisper, more contrast and generally improved by a wide margin.
I was completely surprised by the improvement with the new coatings. It was an eye opener. The increase in apparent nebulousity of the Lagoon was impressive to say the least. The Swan was the best I had ever seen in a scope under 15". My viewing partner Randy stated that he thought this scope was about as good as it gets in a 12.5" scope and easily out performed his old 12.5" Dob.
I can now say that new coatings can play a bit part in improving the over all performance of a scope.
Couple the coatings with a good secondary mirror and the changes can be pretty amazing.
The skies were nice last night at Pinos. I thought it was about as good as I have seen in the last two years. Too bad the moon came up about midnight!

But, I was getting tired by 1am when it became a problem, so no big deal I guess.
Next Saturday I am going to a new site that I have been scouting. The skies are better than Pinos, though the elevation is only 2,300'. There is little to no light pollution or domes that we could see. Almost 30 miles to the nearest small town, which is saying something for our part of California.

We have our fingers crossed that we might have found the newest summer winter site for out area.
Floyd