Personally, I prefer urtext editions, but I'll consider non-urtext editions if the editor or editorial board is highly respected. An example of that would be the Paderewski edition of the complete works of Chopin. Paderewski brought together an editorial board comprised of some of the best scholars of his day. Those volumes, while not true urtext as we think of the term today, are still the next best thing. Schirmer's Chopin offerings cannot compete with the likes of Paderewski, Henle, or Peters.
As for urtext, I've read somewhere that they do not have fingerings
quantum - most teachers I know around here consider Paderewski to be the definitive for Chopin - perhaps the Ekier too... But, *personally* ... I hate my Paderewski Ch. etude book only for one annoying reason - the binding $ucks! After months often weekly use (2-3 etudes), the darned thing still won't stay open. Does this bother anyone else but me, I wonder. Grrr. By contrast, the Dover Beethoven Sonata books I've had for years and they are still holding together, and most of the time stay open with a bit of 'encouragement.' I've tried to "break' the spine of my Paderewski book a half dozen times - i think I've even stood on it - it still won't stay open, LOL
You can also have books library bound, i.e. hardcover, clothbound (or leather bound) with gold (or silver) foiling. It'll make even the worst edition beautiful. It can be done by yourself if you purchase the materials. This wouldn't work well if the original binding is perfect bound as the binding may still fall out but would work very well for sewn bindings.
Schirmer editions are great, if you know what you have in your hands. And you have to get over this fetish of having fingerings pre-provided in your score. Fingering is an act of decision-making regarding technique. It will serve you well to do your own, and if you can't then you do need your teacher to give you the principles that will enable you to do so, no matter how young or inexperienced you are.Best wishes,IU
Furthermore, I sightread a lot of two piano and four-hand stuff with friends (Beethoven, Mozart symphonies, etc.) and some Dover editions have fingering that really makes the sight-reading easier. We all appreciate editorial suggestions, particularly "on the fly."
What is IMPLS?
You read numbers fast! You are entitled to your view point, of course. My view is that if you don't understand the principles behind the fingering, you waste way more time. Once you understand the principle, you don't have to write your fingerings down, except for exceptional, creative fingerings that may need a reminder. Your fingering choices become second nature.
No, we understand your point. But when you are sight-reading stuff and the editor throws a finger number your way to indicate that a scale passage won't run in the normal fashion, you are grateful. It's exactly this kind of fingering that alerts you to the need to violate the "principle," that you are happy for the warning.