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My first quality widefield EP was a 13mm T6 Nagler, and I was disappointed with that EP's performance. Reading all the hype, like you say "sharp to the edge", "ultimate" glass, contrast sharpness to "blow your mind" etc etc , and paying top dollar I was expecting a perfect image, which I did not get. The EP was worse on planets than a simple plossl, it had false colour near the edge of field, and initially I had trouble getting used to eye placement and was getting blackouts all the time. I felt cheated at the time, but eventually I learnt that there is no such thing as the perfect EP, and every EP is a compromise of features and performance parameters.
I bought the 13mm Stratus later and spent quite a few nights comparing it with the Nagler. On axis there was not much between them, and I thought overall the Stratus was very good considering it cost just little over 1/3 the price of the Nagler, and it is also more comfortable. Sold the Nagler, kept the Stratus. The Stratus has since also seen a 14mm Meade 5000 Plossl and a 14mm Pentax XW come and go. So it's a fine EP and can mix it with the best of them.
I think the best EP for your scope is the 10mm Pentax XW. It's as close to perfect as you can get it would seem.
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