I wouldn't so much say that they're "better" but rather that they have different capabilities and cover a wider range of applications. You do have to be a bit more careful about how you use some of them (whereas the consumer level stuff is almost idiot-proof).
Here's an example where you *don't* have to be more careful but might find something you like better- there are four "pro" products that are *VERY* similar to your DC #2 polish, all subtly different- #3 (works fine by hand too)/ #5(*VERY* user-friendly!)/#7 (not as user-friendly, but the best looking of them all)/#81 (pretty user friendly, the closest to DC#2).
Similarly, you could try one of the pro waxes/sealants instead of the DC #3, you'd probably get much better durability and you might notice a better look too. Here I *would* say the pro stuff is better. Ditto for their interior/exterior vinyl/leather/etc. products and their shampoos (the only Meg's shampoos I like are #00 and #62).
Where you do have to be careful is with the products that contain abrasives (Meg's would say "cleaners"). Instead of the cleaner wax, you could try #80. Do a little research here about how to use it.
No real need to be leery about trying the pro stuff; I first learned about them from my mother and her sister, who'd used them since forever (they remembered when #16 first came out in the '50s).
BTW/FWIW, I too used a regimen similar to what you're doing now on single stage cars back in the day. You could do worse...but I bet you'd like switching to the pro line, I know I did.