Combinator: play through for Remote control
As soon as you put a synth inside a Combinator you lose the ability to control it fully with Remote, at best you can map the Combinator controls to some of the controls on the synth.
It would be much better if you could assign an instrument in each Combinator to receive Remote input. This would allow you to stack effects on a synth in a Combinator and still have as much control over it as you would if it were an ordinary instrument. I find it frustrating that if I have a synth and want to add an Echo, as soon as I save it as a Combinator I only can control parameters I have mapped.