Another tip - one thing all of these are lacking is some kind of unity volume normalization - in other words, many patches alter the level to some extent. When setting up a patch you can fix this by adjusting the output levels or patch volume. However a few of the voice or synth patches use an Attack trigger (i.e. when you dig in on your bass it alters the sound). This is desirable because it allows you to add expression to the patch, but it requires certain levels to be coming in the input.
The net effect of this is that kind of patch sounds like it doesn’t do anything at normal volumes and then suddenly plays very loud. These patches seem useless at first and when you run in to one, try lowering the master volume or patch volume.
The same is true for patches that seem to have background noise. This happens with real pedals too (particularly phasers and flangers) and you need to adjust levels until it sounds good.
I really wish that had been covered in the manual