Just a bit of (much-needed) historical accuracy here...
I've seen Muslim powers execute rather long-range sea invasions, which should not be possible, especially outside the Mediterranean. In 1.02, I saw Muslim invasions of England, Normandy, etcetera, and in my limited experience with 1.03 I've already seen the Emirate of Zaragoza (after conquering Castile and Navarra) invade Brittany by sea.
Historically, except for short-range operations such as crossing the Strait of Gibraltar or island-hopping across to Italy, I am not aware of any case in which *any* Muslim power even attempted a sea invasion which (on the CK map) would require crossing more than 2-3 sea provinces.
My suggestion would be to limit Muslim army by-sea transport to a maximum of 2-3 sea provinces, if possible, and possibly even different limits inside and outside the Mediteraanean (with a longer limit inside and a more strict 1-2 province limit outside).
I've seen Muslim powers execute rather long-range sea invasions, which should not be possible, especially outside the Mediterranean. In 1.02, I saw Muslim invasions of England, Normandy, etcetera, and in my limited experience with 1.03 I've already seen the Emirate of Zaragoza (after conquering Castile and Navarra) invade Brittany by sea.
Historically, except for short-range operations such as crossing the Strait of Gibraltar or island-hopping across to Italy, I am not aware of any case in which *any* Muslim power even attempted a sea invasion which (on the CK map) would require crossing more than 2-3 sea provinces.
My suggestion would be to limit Muslim army by-sea transport to a maximum of 2-3 sea provinces, if possible, and possibly even different limits inside and outside the Mediteraanean (with a longer limit inside and a more strict 1-2 province limit outside).