Doc,,
You’ve sold yourself short..
4.8% was a crappy rate 2 years ago and 2.30% is crappy today, as well as 2,71% for a 1 YR CD..

Liquid rates are in the high 3’s today, maybe 4%, and I am pretty sure that you can get well over 4% for a 1 or 2 year CD.
It’s FDIC insured. The govt is bailing out homeowners, they will bail out bank depositors too.

Assuming that you want to have US$ account, I think it’s foolish to not go to the highest paying, riskiest FDIC insured joint.

Just know the FDIC limits of coverage per account, etc.