No, I haven't tried RTR 6.0 yet. I did play RTR 5.x. Now I will probably wait for the post-BI version of RTR, or perhaps the post-BI version of SPQR.

BTW, I like your ironman contribution. I might adopt that one myself. The only problem I see with it is that you wouldn't be able to get any "man of the hour" adoptees, which is one of my favourite game features. But I suppose you could modify it by saying, you can't move or stay in foreign territory without a general. Then you could still generate your men of the hour from fights with rebels, or when defending your own territory.