Middleriver:
I concur. Love looking through Leicas, but not always hold the actual user experience in the same regard.
The 12x50 is really great as a general binocular on the monopod. For birds in flight it throws a slight wrench in the machinery as I find I have more trouble nailing focus with it compared to the Meostar 12x50 - which has more of a Zeissy focuser. The similarity in use between the SFL 8x40 and the Meopta 12x50 is a combination that works great and has that sameness about them that makes transitioning between them a breeze. Both focusers work flawlessly - as any bino should - and though they may not be to everyones taste I think they are top notch.
Hopster: Good to hear you have one for evalutation now!
If you are not troubled by the smaller AFOV that is great, that was together with the smaller magnification the dealbreaker for me - but that is in comparison to the two 8x binos I have. I would have loved to have replaced both of them with the 7x42 and if that would have happened I would have had the "happiest" outcome. A compact and light binocular. For general viewing the 7x42 is still in the top three of my most liked binoculars. I also like the size, the "look" if I may be shallow and pretty much everything about it. It is a beautiful binocular.
The focuser is what it is though. My first 7x42 went back to Leica for servicing of the focuser which was sticky around infinity. It came back just as bad, and it was bad, no excuses on that sample. Shop agreed and refunded me without question.
My second 7x42 had a very good focuser (in my opinion the Ultravid focusers are simply not great, but a good one works adequately). It was good enough not to be in the way in daily use - I simply did not think of it. As far as focusers go, that is all I need.
The experience I have with Ultravid focusers is that they usually stay the way they are (once "broken in") if they are used and for the most part don't get worse over time.
The exception would be initial stiffness of new binos which I find have improved after a month or two of regular use and then "settled". It could perhaps have gotten slightly better for some time after that, before it settled to the point of me not noticing a difference.
On my second 7x42 I worked the focuser everyday for the first two weeks and it could be my imagination or sensory accommodation but I thought it got better to the point I did not register it anymore. Was it perfect? No. But very good for an Ultravid.
EDIT: I have to mention that the focuser was good enough to start out with. I am not sure any Ultravid focuser that starts out a bit jerky will ease up to the point of being more than "ok".
My 12x50 also has a good focuser but I find that I have the smoothest experience with it using two fingers. With one finger I can sometimes get that "oval" feeling, like it does not turn with the same resistance during the turn. I would not call it "jerky" but rather uneven.
That uneven resistance (smooth <> smooth, but not binding or sticky) when turning does not get better over time.
One has to get used to it. I might be overly sensitive to it but I am used to great focusers.
It is also a spot of bother for birds in flight for me and that is when I find it does not work as well as the competition.
For all other use I have no problems with it and apart from that specific scenario the Ultravid 12x50 is a joy to use.
With regards to CA and other optical properties of the 7x42 I found it to be very well balanced and not lacking in anything critical. I did get some ocular reflections from my previous glasses but that happens with most binos I have tried (but not all of them are that sensitive).