Hello
I think going in the branch is a safe good idea. I know pre-approved doesn't always mean you "pre-approved" as things change every second. LoL, but I Iike to believe, it is better that being "pre-selected", for sure! Do it in the branch.... Go for it!! All you'll get is the hard pull if you are declined. They go away. You could roll the dice online, but you have no offers, not that that always matter either. I like the branch idea, but just my own opinion. Go for it. You may be pleasantly surprised. Then once you get approved, the green checks will start poping up all over account 
Also, I can tell you my Chase experience over the last 4mnths, starting in late June this summer and going through this past Tuesday 10/23/18. So, it starts off with me having a Mazda lease and it is through Chase, so I was online paying my monthly payment in June and I notice it said I was "pre-approved" for a few cards. I applied for the CFU, and got a "7-10 message" for a decision. I called the next day and asked if there was any information I could provide for them (based on some experiences I read here in the forums), since I already had an acct with them w my car lease. The rep put me on hold then transferred me. Another rep picked up, and asked me a few identity questions, then approved me for a SL of $7k. Awesome, right? So, now a few months later, on the 20 of this month Oct, I log on to my acct and see I received a +$5k increase on the card to a total of $12k on my CFU. Even crazier, right, because I didn't even ask for a CLI. They just gave it to me (I did use the card ALOT though, over the 4 months since I got it and paid it off ASAP everytime). So this Monday, I logged on and saw the green checks for all the other cards they offer. I went on an app spree and applied for the CSP- approved immediately for $10k, then the next day (35hrs later applied for the Slate and was approved for $3.2k. GREAT....Want the best part? They used the same hard pull (EXP and TU) from the CSP for the Slate app. I rolled the dice that they would, against everything I've read on double dipping and app srees, ad it went my way!!! Now I have three Chase cards with a total of $25k!!!!
Good luck and update after
Mark