I would think that the base of the ZFT4 tower would be too far back on a 197 hull, causing interference with the rope. It may be a moot point unless you are skiing deep into short line lengths, though.
Plus, I think weight might be a factor. It looks like that tower is going to be noticeably heavier than the old style towers. It is not such a factor on a bigger boat such as a X2, X25, etc., but on a light 197, it might have a negative effect.
2005 ProStar 197TT, #28 of 100
Broken Bow, OK vacation cabin for rent -