I’ve also used multiple iterations of iPad setups… sometimes simple, other times super custom made (effects, midi remapping, controllers, looping, sequencing ipad synths etc.)
although it’s almost limitless, and great for playing at home, I’ve had a few bad experiences performing live where an app would crash (typical scenario where it works great at home, never fails, then while playing live something goes wrong) and I just couldn’t trust it anymore…
I got my second KP3 in a trade recently (I sold my first a few years ago) and I thought of using it along a portable dj mixer for transitioning between patterns, for the ease of use and instant functionality (compared to the OT, wich I also tried a setup with but seemed more falible - I had to remember to reload the part in case I had messed around with the effects on the previous transition, etc.)
but I eventually realized it also had some caveats - for example, once I had my loop going, I had to remember to change the input to MIC in case I wanted to effect the loop with the KP, or otherwise the input from my DT would go through the effects too when enabling them, hence duplicating the signal… on the other hand, I would need an extra mixer if I wanted to sum up the external synth I use (Audiothingies P6) to loop both sources… and also, with the OT I could use THRU and NEI machines to process the P6 (filtering low end, adding some reverb to glue everything together a bit, etc.)
sooooo… after all this coming and going (and beeing really close to selling my OT) I’m now working on a set with DT, OT, P6 and a small Faderfox UC4 controller.
I was getting too obsessed with having a portable set, and I don’t even play live that often! so now I’m trying to go for a set that inspires me the most, while remaining fairly straight-forward…
sorry for the long post, this got out of hand!