In RB there is also a tool that helps make sure your Audio and MIDI signal triggers are in sync.

Prefs - MIDI tab - MIDI Devices - Latency Adjust button.

This shows you how your MIDI trigger speed compares to your Audio and let's you make said adjustments.
From the Tool Popup:

"This lets you adjust the latency setting for a non-DXI soft synth (e.g. GS-WaveTable Synth) by
ear. When you press the Start button, PT will load in a special song that contains an audio and MIDI
track that plays quarter notes. The note of the MIDI track is a 5th higher than the note on the
audio track.

While the notes are playing, adjust the latency on the spin control until it sounds like both notes are
played in unison. Press start again. If the song starts with the tracks lined up right away then you
are finished. If not, then this means you overshot or undershot the real latency by the length of a
quarternote which is 500ms. (e.g.: If the MIDI begins exactly a quarternote early then
the latency setting is now 500ms too high. If the audio is heard a quarternote early than the
latency setting is still 500ms too low.)"

I do not work here, but the benefits are still awesome
Make your sound your own!