Hi all.. I have recently returned to playing after a long break and have been thoroughly enjoying my new bach strad 37. The first time I have owned a bach. The other day I started playing with some other instruments and found that I am playing very sharp. To get the intonation sitting well I am having to pull the tuning slide out much further than I have with any of the other trumpets I have owned in the past (about twice as far - almost an inch verses about half an inch with the other horns) As I am getting my chops back after a long break and have a weak embouchure is this purely operator error or is this extension on the tuning slide something in line with the bach's and the lead pipe etc? I welcome some well needed advice!