If the CpaOne will be your only revolver then you should get a nice bump once it reports. Make sure with a 200 dollar limit you only let about 5-8 dollars report. It may be a couple of months before you see it, but I personally got 30-40 points when I went from 0 revolvers to 1.
It's not uncommon for someone to make pretty good strides at first by getting baddies off, but there comes a time when aging is about the only thing that will help. Ideally you will want 3 revolvers so you can do AZEO, but for now, I would let the Cap One report and see what type of bump you get. You will likely be able to get a Discover or maybe even Amex after it reports.