It doesn't matter if the RFX buffers or not. The controller or remote is perfectly capable of buffering and queueing. And yes it does buffer, but it does not queue. And the buffers are emptied on a new command.

It doesn't matter that the GC devices are better or not. If the RFX is good enough it could save money and effort for those that already own a RFX. If Pronto trully ends, there won't be new RFX devices after this month anyway

And the RFX doesn't respond three times on everything it also can't do delay's, it seems as if the TSU does the delays.