Maybe. I’ve played two forever (with 17 ICE) and I never felt I really needed a third Turing. It’s a wonderful piece of ICE to protect early remotes, but its use on centrals is of course limited. Furthermore, depending on the breakers your opponent is using, its taxation power can vary wildly, so you cannot depend on it to provide as much decent late-game stopping power, as you would with e.g. a Tollbooth.
Ichi, on the other hand, is practically always taxing in one way or another and can be put anywhere to provide annoyance for your opponent. The Ichi + Cyberdex threat is also too good to not abuse as much as possible in this meta.
Basically this: HB:EtF variants in the SanSan Cycle - #144 by higgs_bozo