Hope the subject is ok here! Now done 3 gigs with the ST3 and its working fine. However last night my WIDI lost connection twice. I'm using 2 x Ipad 9. One is wifi to my RCF18 digital mixer, other is running ST3 with a Widi Master Bluetooth to the mixer for patch changes both for vocal reverb and guitar patches which are built in to that mixer. Small venue that was very busy, no other Bluetooth on stage. Its been fine since getting the ST3 at the end of January. My option is to change back to USB from Ipad via Apple converter to the midi interface. Any ideas? Cheers, Mel