I’ve had a great experience with Turbo Cottons, haven’t tried the GP 5000 but somewhat hesitant to over concerns with hypothetical issues with changing them on the road side.
At present leaning towards tan wall Michelin Power Cups. I have non-tubeless wheels so will be going clincher. The only concern seems to be the narrow tread but haven’t seen anyone actually have issues with this yet. Huge thread on Weight Weenies about them New Michelin Power Cup Tubeless: GP5K S TR competitor - Weight Weenies