Regarding your first question, I do not mind at all of course!
Can't help you with your issue very specifically since I don't know about woodwinds enough, but the piece doesn't seem to go wild in a technical sense. As Mark said, it would be really helpful if you provided a score.
Now regarding the piece itself:
• A nice, intriguing beginning. A "blurred" cresc. from it to ~0:45 that sounds very beautiful but that after reaching its end the music enters in a passage where nothing seems to be going in any direction. Then, some more solid passages that end in a silence that is not too abrupt to my ears and with which I expected some transition, but it is kinda timid. There are some rhythmical measures but if I conjoin all of them I don't get again any particular direction. Don't get me wrong, it does sound beautiful, there are some very nice bits here and there but I feel like if the instruments were lost and couldn't find the way to keep going. One of them finds it but some other voice ends up "distracting" that instrument and we come back to the origin.
• That feeling is still present at ~4:00. New voices come in and out up to ~5:30 where things calm up a bit and the light at the end of the tunnel intensifies. The last long silence allows the entrance to a new section that despite some voices that try to convince me of the opposite, seems to mark the end of the wind the more we approach the end... But I'm not sure if they ended up doing so.
In summary, a piece that sounds beautiful but that in my humble opinion lacks a leading voice that thus makes every passage blend which is not necessarily bad, but it can be, specially if doing so is not your intention, as if overused —in my experience— has the effect of nullifying the particular character of each instrument.
Hope I've not been too dense and thank you for sharing it! I'm sure that a score will help woodwind players to tell you what can be more or less tricky to perform.
Kind regards,
Daniel–Ømicrón.