Not to judge and direct you away from XMT or Sonus. I've seen great results come from bother lines.
Menzerna sells, a glaze, numerous polishes, wheel cleaner, sealants. It's a nice line up. Can be a little finicky at times.
A lot of people and I included use the Menzerna line up. The newer polishes 106ff and SIP are about $45-$50 for 32oz. Honestly, I don't think you'll find a better line right now. 106ff is so versatile. And on average to hard clears, you can get SIP to finish down LSP ready.
I guess my point is a little bias because I've only used Sonus' clay and XMT's 360. But with a gallon of 106ff and SIP. I won't be going anywhere soon. :woot:
Sorry I couldn't be more of a help.
- Andrew