True. Cubase / Nuendo has had a long history of midi timing problems for some users that has only recently started to die down. The system timestamp thing didn't necessarily fix it for everyone and the complaints were still coming in. I personally didn't have any issues after doing the ignore port filter thing but some users have. It's a pretty well documented historical issue/problem with that daw. Good to hear that Reaper won't have that problem. Cool.
what about this situation in reaper: (i never seemed to have a problem with this in reaper but i have with other programs, but im wondering how it will be affected) you have an audio/vsti mix running you are across the room with headphones on at your electronic drumkit you hit the snare the information gets read by the brain, sent to the pc through midi, into the audio interface, delayed a bit, gets processed into the vsti, causing a bit more delay, you HEAR it... now, you would try to get latency down as far as possible but is reaper "what you hear is what you get" when it comes to midi? like, will it show up aligned with audio correctly?