I know CMA has it as well as Costaltool.
So I guess you are using the CMA backing pad with the pads from them as well. This would be the best combo to switch.
If you stay with the smaller Megs pads, no need to.
Still love the new reformulated Zaino Z5/Z2! Works very well!
Oh yea, I still have those same bottles of Megs with the kit too!
KOOP:
Still use DACP, #9 and others, but really like to use 3M products as it's more geared towards bodyshop work anyway. I use the PIII-MG for swirl removal, then switch to a lighter polish and grey pad so only the polish does the work. Menzerna FP is OK, but needs getting used to as it's water based as opposed to oil based, so a bit more stubborn to remove. Megs #3 glaze is very nice too. I stay away from #7 as it's too oily for Zaino, but still a VERY good glaze.
I go over hard to get areas by hand. Never PC on those, too risky and run risk on damage to the pad as well.
Clay is one overlooked aspect of paint prep. Shure, you wash the car, but some stuff still is on the finish, so before polishing, clay so you don't run the risk of having that "stuff" transfer to the pad, then back onto the finish making more risk of micro-marring or worse, swirls while polsihing. The finish B4 polish should feel like glass. Run you CLEAN hand over it, if you fell any bump or roughness, clay it.
Then polish away!
have fun and then go show those that doubted you on how ell your finish now looks!
Regards,
Deanski