Just jamming on a beat started by the drummer should be fine. Then each player gets an 8 or 16 bar solo. That way, each player has their time to stretch and freesolo. If all your past experiences of free jamming are people just wanting to make noise, then they aren’t good musicians. Actual good musicians play for the song and the other members, not for themselves. If the group can easily get into an improv groove, then you know you got the chemistry down. Scales and paradiddles should be practiced individually at home.
Just jamming on a beat started by the drummer should be fine. Then each player gets an 8 or 16 bar solo. That way, each player has their time to stretch and freesolo. If all your past experiences of free jamming are people just wanting to make noise, then they aren’t good musicians. Actual good musicians play for the song and the other members, not for themselves. If the group can easily get into an improv groove, then you know you got the chemistry down. Scales and paradiddles should be practiced individually at home.