request: please expose Replay*Base

[Spongman]

I want to implement a ReplaySubject that has a custom Trim function, but in order to do this I have to re-implement everything from scratch. what I really want to do is create a new class derived from ReplayManyBase and add my own Trim override, but I can't because it's all private,

[bartdesmet]

This is worth considering, though we have to make sure the result is usable without having to expose a plethora of other types (IScheduledObserver<T> comes to mind). Out of curiosity, what's the Trim policy you're looking to implement?