Hello all, I play infinity with my son, may do tournaments in the future. We started with N3 and since we didn't play more than once a week for every minute of game time we spend another minute reviewing rules. So when Code1 came out we happily started playing and we like it. However I am sure when time permits we would like to try out some N4 games. So I was thinking since I played mostly OSS in N3, and am playing Yu Jing in Code 1 looking at the unit interoperability between ISS and OSS in N4. I will make a matrix of units to see what overlaps, and of course proxy models as well, but does anyone have any advice on this?