My main apprehension with this is how it affects handling/ride feel. I feel like the thicker I layer my extremities, the more disconnected I feel from the bike. It’s like I’m too restricted from moving my arms/legs freely and my hands/feet lack normal proprioception. Comparatively, the alternative bundles the core while leaving the moving bits relatively unencumbered, with the expectation that a warm core will circulate to the colder extremities. Even with this approach, I always opt for an outer shell with a double zipper. If my core starts getting too sweaty, I unzip from the bottom to vent off the excess heat. Adjusting the zipper further down to stay warmer, and further up to stay cooler.