Grips are still available. The old ones came off fairly easy. I used a butterknife to lift up the end of grip, sprayed in a little silicone lubricant, waited a couple of minutes, a few twists and they slid right off.
I guess it depends on your personal preference. After reading the posts it seems the members use both the 6241's and the 6180's. Let me know if you are still interested.