Plus one for Matt's post - that was the real reason I set up such a contentious topic. But Lloyd S, contrast this video on using playable RT's with the ease of plugging in a keyboard and recording a midi phrase

https://www.youtube.com/watch?v=dggX5xStv3A

if you play the trombone phrase in my post above - no generating, no silencing and no note for note editing in either piano roll or editable notation of what the RT originally generated. you just get a midi recording in seconds by plugging in your controller. to optimise RTs i personally find it easier to generate alternative takes and cut and paste in RB to get what i want. to get my trombone part was much easier with midi.

playable RTs are amazing and when a whole part is generated fixing individual note or short phrases is fine. another video here suggests that playable RTs are for just that.

https://www.youtube.com/watch?v=hoptOS6ubmY

but i still contend that midi is the easiest and most effective way of playing in a specific short hook or phrase.

as Lloyd S asks after listening to my tromone clip would any of you really use editable RTs to get the fill i wanted?

in conclusion, whatever you find works for you is the best way forward but my original point of new users not exploring the benefits of midi still stands and the more positive message is the one Matt posted.