Thank you all for your input.
I read/watched some reviews of Sightron's scopes as they pop up when researching the Delta, making a comparison inevitable. DOL compares the Stryker and Sightron directly in several videos as you likely know as do Optics Trade and Richard Utting. . The first review I watched was Cyclops' video (he's the most entertaining by far) which started me down the path to budgeting a bit more money on this.
Lewis: It's the Stryker's ability to go down to 5X (vs. 10X) that seems like it would be useful to me. I think the Sightrons V go to 10 yards but I'd need to check on that. But it's the magnification range that makes me favor the Delta.
Steve, regarding Athlon I got the ETR version, not BTR. Unlike the USO it came in a factory sealed box, also from Amazon. I used Amazon for easy, clinical and guiltless return. but have always planned to buy my stuff to keep from a retail specialist. The CT (Midway) also appears to have been repackaged before being sent to me but the packaging was not shopworn,. I don't know if that makes a difference respecting their conditions but it didn't fill me with confidence about either sample I received. That said, both were cosmetically without obvious problems despite possibly being prior returns (USO definitely was not new). BTW, the turrets of the USO have dead spots at the extreme end of travel as I have seen mentioned in another online review. The clicks become indistinct at one end of their range. I think I learned the meaning of "mushy" from that but to be fair, all of the travel in the most used part of the range revealed the turrets to be the best feeling and sounding of the lot within my limited ability to make such comparative observations .
Odoyle...thanks for your continued input on this thread and elsewhere on the forum. I've been pouring over all the dope here in many threads and reviews. Your shared experience in these matter is appreciated. The hope is that one of these upper midrange units (Delta, Trijicon, Sightron, etc) is that one of them ends up being "for keeps" and offers a bit less compromise than the less 'luxurious' ones. I try to be a big boy and take responsibility for my decisions but I appreciate your offer regarding the Trijicon and will keep it in mind although I don't think I need more than your comments and experience to help guide me along. I'm inexperienced but like to think I'm a fast learner. Thanks for the help learning me.
Stoti: Thanks for your input as well. I'm going straight to your review after I write this. I haven't seen any reviews of the Delta that are less than positive but personal knowledge and ownership makes any review more convincing. I do like the Sightron's dual speed parallax controls but the zoom range of the Delta suits me better, I think. I look forward to reading your review now!
My rifle has arrived at Utah and should be shipping to me at any moment now. This is getting real! I can't wait to get all this new stuff in my hot grubby hands!
Edited to add: In fact, I stumbled across your thread (@Stoti) a few days ago but didn't connect your name to it until I followed the link. I reviewed your thread again just a few minutes ago. I found out pretty soon that you get to "the end of the internet" quite quickly when discussing better quality riflescopes for airgun mounting. It seems not everybody on the internet is as interested in $1600 riflescopes as they are in kitten videos and how to bake perfect sourdough bread. Airguns (and airgun-ers) are different! Your review reinforces the other info I've found so far.