Feature request- sounds

I’d really, really appreciate knowing what AU sound sources you find work well. I have tons of apps but not that many are AU compatible… Moog Model 15, Bismark 16i, iSymphonic… plus the free Roli’s.

Unless I’m missing something an AU plug in is like a direct midi connection and is therefore not multichannel- multitimbral? So multiple instances of instruments seem inevitable.

I’m running on a 9.7 inch iPad Pro ( first version ) and I find the results disappointing. Model 15 eats resources, Bismarck will only run 1 instance ( I want multi - Timbral) , iSymphonic gets crashy and I haven’t felt like splashing out on the Roli sound packs yet… though the free versions seem promising.

So what AU sources are you plugging in to get say, 4 or 5 stable tracks playing different MIDI tracks?

Just need some kind of baseline to work from!