Glassing fatigue.

[Turkeygetpwnd38]

It might not be in the cards but glass quality does help a ton. I can tell a significant difference all day coues glassing between SLCs and ELs and those are both considered top end.

The difference between low end vortex and mid tier Swaro/Leica/Zeiss would be huge.

 

[ianpadron]

Not to beat a dead horse but id sell all the glass you listed to buy one alpha set of 10x42s

 

[ianpadron]

Are there any other brands or models that should be considered besides the razors in 10-12x.

Used Meostars in 10x42 or 12x50 are the top of the heap with no equal for sub $1k glass.

I've got a shelf full of flagship Zeiss and Swaro binos and still use my Meoptas frequently.

 

[elsb0048]

I can't speak to the alpha glass as I don't own any.
I did experience some headache relief moving from bottom of the barrel steiners to mid grade zeiss conquest 8x42. I think that swap is in the get 80% improvement with 20% investment range though lol.

Not sure how your athlons compare and if they're likely to contribute to your eye strain.