@Anonymouswrote:I've had a Cap One Platinum card for a few yrs now and have been itching to upgrade it to something that feels a little more prestigious. I've read that PC's can be hit or miss, and I've been a little more trigger happy in applying for credit in the last yr than I'd like. I did not want a 2nd Cap One card (esp the QS1) and would rather save that space in my wallet for a prime card elsewhere (when the time is right). My FICO is showing 636, with high utilization and a 7 yr old Ch 7. I'm on a slow road to getting my credit higher than ever (I've been bad with it most my adult life, still need to control my spending), and I know I'm nowhere near having great credit, but already not having to worry about simple things like deposits for wireless/cable service like I used to feels really good... or having a small cache of CC's on tap when I pull my wallet out, has me wanting to push the limits to see what I can get (overshooting at times).
With all that said, and without getting too far off topic, in an attempt to tweak my credit profile as much as I can with little consequence, I online chatted and PC'ed to the Quicksilver card with no problem! Just a small victory today, especially after getting shot down for a Walmart card CLI from $200 (which this site sort of put me up to reading the apparent giving away of CLI's from Synchrony).
@I did apply for a CLI after the PC and got the 2-3 day decision result, usually means "nahh" in my experience. I'm at $1250 (highest CLI is NFCU Cash Rewards @ $2000, my first auto increase and PC).
Glad to shed my wallet of this boring Platinum card, add some rewards, and to slip my way into a card that seemingly is reserved for the high 600-700 club.
By the way, I hope this isn't a dumb question and my first mind says no, but will certain cards raise credit scores? I could not find a clear answer anywhere.
Hope I didn't rant too much.
There you go...well done! 
Congrats! You are definitely thinking the right way - quality over quantity!
I also think the PC to QS will help on an CLI, too. Cap One is a SP for CLI. Don’t be afraid to try often for one. Once you get it, it’s locked in for 6 months. It will help with that cards utilization and help raise your scores.
