How is your keyboard playing? Good, or good enough to get by?
Even great piano players have difficulty when it comes to MIDIkeyboards. The problem is that it is difficult to judge how hard to hitthe keys to get the sound you want. Most times, even slight changes inkey velocity result in unpredictable changes in level and timbre.
Most of the time, you don't even need the keyboard to be velocitysensitive. So try going into the editing pages and setting the velocitysensitivity to zero, then see what your playing sounds like.
Often you will find that immediately you sound much more polished andprofessional with a sound that just seems stronger and more robust.
Sometimes you can filter out velocity information in your sequencerand convert every note to a fixed velocity. This is even better. Trychanging the fixed velocity and within each patch you will find a whole new range of timbres that you hadn't realized existed.
Honestly, it sounds so simple, but you should try it.