Thank you for your reply! I am almost set on 10x 42s, primarily because of longer distance and low lighting but if I could get something equal to (I know, probably a unicorn!) I would consider them. I'm not really bothered with IS tbh as hand shake isn't a concern, it's more of the weight when carrying them around for me. My hands are/were steady enough when I tried the Zeiss terra; but jees they felt heavy and hurt my arms after about an hour.Sadly the trouble with 10x42 bino's is weight and the 725g you alluded to as on the heavy side is very much in the ball park for that size.
If you are hell bent on 10x but could consider 32mm, I would have a close look at the GPO bino's. The Passion ED 10x32's are cracking binos and with current discounts, work out around the £340 mark. The GPO 10x42's are equally good and are about £380 but do work out heavier.
I wonder if you have considered IS binoculars? Like you my wife is petite, suffers a bit from handshake and uses the Canon 10x30 II stabilised bino's. They are truly excellent and whilst only 30mm, provide a superb view and, importantly, none of the shake that can occur by the weight and magnification of 10x non-stabilised bino's.
Just a thought for consideration, they are about £450 after a bit of net searching, and I must admit that once that little magic 'on' button is pressed they provide a fantastic, rock steady, view. They weigh 670g.
It is so difficult to recommend particular bino's and as you have mentioned it is best to physically test them if at all possible. I have tried some bino's that have been highly recommended on this excellent forum and unfortunately they either did not fit my face or didn't meet my needs. We are all different!
Good luck in your search!
The GPOs are very well liked/reviewed and I absolutely love the look of them!
I think because of the appalling quality of the ones I currently have and their size of 10x32 (sorry again, no offense!) that's put me off going with, or near that size in general.
I guess what works realistically is trying them out in person. Looks like I'll be doing a bit of travelling.