Ah, glad to hear from a 'voice of experience'. There are always trade-offs with radials versus bias, and handling versus ride comfort is the obvious one. Just as an aside, and not a direct comment on the Aeros as such, generally speaking, you cannot 'just' replace the tires in an older car especially one with king pins. Some tweaking has to be done (toe in, camber etc) to get each tire to work as 'properly' (based on its design) as you can get it to work, because they have such different characteristics. That's if you can find a radial that is (remotely) close to the size and shape of a bias in the first place.
I remember a fellow being upset with his Studebaker, after he went to the trouble and expense of getting repro bias tires with the wide whitewalls--it just didn't ride like it had before. Turns out that the suspension had been adjusted at some time prior to when he purchased it FOR radial tires, and when it went back to bias he forgot to give the specs for the OEM style of tires. It was in an older shop where this normally would have been been picked up, but it was a younger fellow was doing it instead of one of the old pros, and he was unaware that bias just are different that way.
Another thing to remember as a safety issue is that steel belted radials have a safe life of maybe 7 years from date of manufacture, whereas the fabric belted bias--with care and protection from sunlight--can last a lot longer.
