I agree when it comes to the big plasticy patches, and that is down to the sponsor wanting clear space between their logo and any background pattern, the blue and white stripes in our case.
However when Nike do individual letters, like they do on the training shirts, as per the picture of mine...
The sponsor will be iron on.
Being a single colour, however, it should be the case that the logo is individual letters rather than a big plasticy patch. That'll do for me (and most, I imagine).
With the club having been stung by the criticism regarding the sponsor panels, I wouldn't be surprised if both shirts are stripe-less, permitting the Amex wording to be individual letters.
Fingers crossed, anyway.
Mu guess is that the home and away shirts will change on alternate years, so each will be in place for two years.
However, having switched to Nike and brought in two new shirts in one year, one shirt had to change after just the one year (because it was never going to be three) in order to get...
Fair enough. Even Juventus have a panel.
Regardless, if we go for a plain coloured shirt, it permits individual letters to be stuck rather than a panel, and that would get rid of about 95% of the complaints.
It will be stuck and not printed because that's all Nike do.
It makes a big difference, however, if individual letters can be stuck on instead of an ugly patch, as is the case with the training kit for example.