Everything should be as fast as possible, but `Y.soon` isn't free unless it's in core. If it were in core, I'd say yes. Barring that, it's not worth the additional requirement, k weight, bootstrap time, and function hops that only *might* result in saving a few milliseconds for an operation that won't be called very often (relatively speaking) in a page's lifespan.

But by all means, continue to press for `Y.soon` in core :)