I've used DACP with a PC, and it really is a royal PITA until you get a hang of its learning curve. For me, on a single stage heavily oxidized red Toyota paint, it was by far the best product to use with an Excel Propel Orange Cutting Pad over other products like Megs Speed Glaze, Optimum Polish (old formula), Optimum Hyper Compound and even Poor Boys Sr2.5.
But I hate this product and hardly ever use it. It gums up real easy. Try to keep the pad clean and/or replace the pad often.
I found if I kept the PC at or below speed 5 it did not gum as much or as often.
This DACP can and will wear you down doing a car the first time you use, you are definitely not the first person to experience this problem.
I switched to the Optimum Polishes because they are much user friendly. However, the DACP is a good product when some other products will not get the job done (for whatever reason).
Don't quote me on this, but I believe the majority of Polishes and/or compounds from most commercial companies are made for rotaries and not PCs. Why you ask, because body shops almost exclusively use rotaries. The boutiques companies may go after the PC market. However, as many of you know and have found out, the polishes seem to be interchangeable for the finer polishes and are interchangeable for both the PC and rotary. IE Megs Speed Glaze, DACP and Optimum Polish and Hyper Compound. (But I think originally these polishes (?) where designed for rotaries).
There's really never a reason to bad mouth a company publicly (or their whole line of products) without first asking for help about how to use a product. Some of the very best detailers in So Cal use Megs products almost exclusively (Superior Shine) and get paid very well for their services. But bashing people for their difficulty in using a product is also not appropriate. I think the consensus from most people is that DACP is a difficult product to use, many detailers probably even give up on Megs. because of this one product, (I know this is when I tried Optimum Products), but this does not mean it is a bad product when it is used correctly by a trained technician (on the right car with PATIENCE) and experience.
I am trying to learn how to use a rotary, and hoping this will be a good product to use. But I fear, I will probably stick to the Optimum line because they will be easier to use for a beginner. It does not mean the Meg. products are bad. Just means I need to learn them if I want to use them bad enough.
Like many on here have already said, use the products that you like, (and don't use the ones you don't).
From this thread you can see, there are some fans of DACP and many who hate DACP. To be honest I am definitely neutral. It would definitely not be the first bottle I would pick to Polish a car (PC or rotary) but I would not be afraid to use it again.