Balance transfer card

Considering doing a balance transfer from my Chase Sapphire which has $9K on it to take advantage of a 0% APR period that would let me really put a dent in that debt. I am considering applying for the Wells Fargo active cash card as it seems like a good option for this plan.

My credit score is literally within 10 points of their acceptable credit range, and I know that’s because of my % overall credit usage (hence the want to balance transfer). I make all my payments on time and pay more than the minimum, so I’m wondering if I could just scrape by with an approval.

If I am NOT approved right now – after upping my credit score by those needed 10 points would it be bad to apply again? Would that hurt my score in any way?