Good idea, Jan. I'll make this first pair the trial run.
Here's a site that talks about making the fingers this way (but from the fingers down):
Anne Carroll Gilmore gives the traditional method for making glove fingers in her pattern Very Basic “Dancing at Lughnasa” Gloves, but she says she always uses the I-cord method. And the gloves she gives the pattern for are made from the cuff up. Hence my suspicion that the method can be used either way you make gloves.