Thankyou Claudio! I produce clean groove cuts by taking it slow, remembering to let the shape of the bit do the work. I check the angle, and "wiggle room" with the bit inside the groove after each cut. I also keep the bit cool by dunking in oil for atleast 10 seconds after each cut. Very important.
Looking forward to your upcoming posts! Get excited for the future my friend! Here's why, and one of my favorite bible verses that gives joyous hope to once again be used as a vessel for good by our creator. "We are God’s workmanship, created in Christ Jesus for good works, which God prepared beforehand that we should walk in them." (Ephesians 2:10)
Get ready for it, good things await you! I enjoy reading your comments on my videos. They encourage me. Keep up the great work brother!