I have had Allisons with the cables, race cables, and hydraulic. My Grandsport has hydraulic. it's easy to drive but I have to tell you I hate it. I'd rather have the feedback from the motor and if I'm having to "fight" that wheel at 90+, something is wrong with my setup and I can't blame the steering means. The hydraulic gives you NO idea of what's going on with the stresses at the motor's connecting point (pivot bolt) and the other things I hate about hydraluic are as follows:
1. Those blasted "turn signal" trim levers. Either they are accidentally getting bumped by a finger on the wheel as you correct for chine walk or when you stand up in the boat a knee hits one and up goes the motor out of the water unintentionally. Have never overcome these two problems on the GSE. Plus, IMHO, dangerous not to have the trim buttons on the wheel in a boat capable of over 100mph.
2. Despite having a brand new helm assembly and brand new hydraulic cylinder and endless bleeding, there is still play in the steering of about 1/8" back and forth in the slave cylinder which translates to about 3/8" at the skeg. This likewise sucks. Now...I have seen plenty of hyd Allisons that have ZERO play. I'm just pissed because no matter what I've tried, I cannot get mine to behave that way. However, what I do before each outing is to turn the system all the way to the stops in each direction and give it the monkey grip, which bleeds the system and eliminates 90% of the play.
The GSE has a 200XS SS and is capable of less than 90mph. Although it makes for an easier drive and is good for a family boat, I don't want and refuse to accept the trade-offs from tactile, cable steering in my 2002 or other boats. Just my opinion. The cables tell me what's up at the motor in terms of torque and stress.
I'm a dinosaur and what do I know. Except that an Allison is a MAN'S boat and if you can't handle the wheel, let a girl drive it.