Pitfalls that I can remember: clarinet and trumpet intonation through out. Some spots the horn does not double alto sax, will go up to to C? D? be careful with their intonation going up to those notes.
Measure 30 the key change, make sure you analyze all the moving parts, because in the recording and all good bands can make those lines come out.
Also at MM 30 the percussion can be over bearing, make sure they know what their function and roll will be at beneath the band.
Great lyrical piece! I hope you and your kids enjoy it