In article , Mortimer Schnerd, RN wrote:

On the Cherokee Six, I'd generally start on one main, climb to altitude and
after about half an hour, switch to the opposite tip tank. Then to the other
tip tank (after I don't remember how long... I think it was 45 minutes)...

In the Skylane RG I take off on both, cruise on both and land on both.

Do newer low wing designs (Cirrus, et al) still require the pilot to
disconnect and reconnect the fuel supply while in flight?