I was seriously considering changing my PS over to manual, in the interest of getting 'light' as possible. I even had a manual steering box (E3 unit) on the shelf. Then I borrowed a friend's coupe with a manual box conversion....and decided to abort the idea. The 50lbs saved was not worth the project hassel, expense and end result (for me).
Finding a machine shop that would modify/shorten the existing steering column (shorten 50mm? IRCC) proved difficult for their liability reasons, many wouldn't touch it. Your wheel/tire size and steering wheel size will have a lot to do with the slow speed maneuvering (friend's car had a small M1 wheel 330-320mm? and staggered 16" Alpinas with meats). I found it very laborious in urban traffic, U/3pt turns and parking sucked. I was quite accustomed the PS's casual usability in everyday use and had vintage competition/track experience with it and have no issues. Felt great to me. I run a 350mm wheel with 14" & 15" wheels, no stagger.
I agree with Keshav in that using the IE poly bushings EVERYWHERE in addition suspension mods (I run IE's coilovers w Bilstiens) will turn 'Das Boat into a far more precise vessel. That and a good diet, E9s are inherently not light.
I have 14yrs/60+k miles with my set up and wont change a thing..... negotiating parking lots with one figure after driving in anger ..Jeckel & Hyde.
Just my 2 cents and HTH.