While I have only ever used Attack/Force the way they are supposed to, I don't think there would be a problem. Roads here are smooth enough for a 22mm front though.
Anyway why not just run 25mm GP 4000S? What would you do with the spare Attacks, or are Force/Attack sold separately where you are?
Living in San Francisco and training in the North Bay, roads vary from baby butt smooth to fire roads and 22mm widths are pretty skinny, though installed on my HED Belgians would make the profile better. As for GP4000S I have used them for the last year and I wanted to try new tires. I actually went on a binge and bought several sets of tires and I wanted to test new ones and also configurations. In California ,or the US in general, we can buy the Attack and Force separately or as a set.
if you like these 24s just buy a pr of "GRAND PRIX" folding 24s ..i have some on my spinergys & they are sweet ..very comfy ..
I concur because I do too have the Grand Prix 24s and they are great. However I just wanted to test if the Force on both ends will have some or any type of difference. However I am trying to find out if it is ok to use the Force as a front and see who else has thought of experimenting.