I'm so sorry but, can you explain the sage modes, if you are so kind? I don't know what you mean by that.
Sage mode (Normal mode as the game calls it) are alternate versions of the ojisans. Ecstasy mode are essentially the default, boss versions of those characters (strong special moves and can deal massive amounts of physical and psychological damage to the girls of the roster), while "Normal" mode balances out those two while making them both SFW (removing their 'sex' options) and viable for tournament play. Sage mode shares some moves with Ecstasy mode, but changes or simplifies them somewhat.
For example, Tanaka's signature move--the Tanaka Buster, is a special command grab that can be combo'ed into and has a massive amount of range in Ecstasy/Default mode. In Normal/Sage move, it's now a super move that still deals damage in exchange for some meter. Tanaka, and by extension Shigezou, gain new special moves that spruce up their gameplan in Sage/Normal mode.