Congratulations Larryace! Very inspiring! I've had similar revelations over the past few years year that have caused me to change my practice habits. I struggled with tempo and timing for a long time, but practicing with a metronome made huge improvements to both my tempo and timing in a matter of weeks. I no longer wince (as much) when I hear recordings of my playing. I find that I need to practice with it consistently or the old habits return pretty quickly. In Future Sounds David Garibaldi refers to groove as "a machine-like consistency from beat to beat and from section to section within a tune". Please continue to share your discoveries with us!