PAYE vs IBR

Currently married with both spouses pursuing PSLF; both spouse loans originated prior to 7-1-2014 and after 2011.

We’ve both been on IBR for almost 8 years/on track for PSLF in 2024.

We both have very high loan burdens and our incomes have increased (substantially) since the Covid deferment began; we may no longer show a hardship under IBR but probably would with PAYE (would still not hit the standard repayment dollar amount with 10% cap—we would maybe hit it at 15%)

I have been considering transferring to the PAYE program to take advantage of the 10% cap rather than the 15% we’ve for some reason been paying with IBR.

Are there any disadvantages to doing this in our scenario? How dumb am I for not doing this several years ago…

Thank you.