I taught HS 8 years and then MS for 2. Then I left the profession entirely. I thought MS would save me because I had all the same woes, but I was still burning the candle from both ends even with my Friday nights back.
Yes it was great getting my August back too, but I had to plan WAY more curriculum, and I almost had as many late nights/Saturdays minus football season. You still have region, solo/ensemble, masterclasses, socials, etc. Trade winter guard for beginner fittings.
A MS day will start at 6:30 and end at 5:30 if you do sectionals. Thatís if you only need 45 minutes to do email, grading, or lesson planning after school. So 11 day minimum if you are really efficient.
Youíll also be EXHAUSTED from all the back to back classes. The day is a lot more mentally exhausting dealing with behavior issues and 6th graders who arenít truly band kids. When you teach HS all the kids who donít want to be in band have already quit. Teaching kids who all 100% want to be there makes classroom management a lot easier. You have to be a behavior ninja with beginners. Itís exhausting.
And no luck if you accidentally forget your lunch. That 25 min lunch break isnít enough time to pick something up real quick. You wonít be able to go to the bathroom when you need, either. MS is hard, yo.
In summary, MS is really not that much easier. You could give it a try, but if you plan on being competitive itís not going to solve your problems.