no, but i did just now
turret toggling on cd til oom - 72.49~ dps @ 7% crit rate
turret damage fulltime - 116 dps @ 14% crit rate
so your turret with this method does 60% of it's original dps. still very good, considering that bards get 15% penalty, while your turrets on single target are like, 12.5%; 60% of that is 7.5%, so effectively, you get penalized with a 5% damage penalty vs bard's 15.