Suggestion, channeling support gem: Warp While Channeling, or Dash While Channeling

Cast While Channeling + a Spell takes up two support gems, and that might (might) be worth it if you're using channeling as a way to proc more damage spells, and GGG is correct to have you sacrifice 2 links for that (like you would for cast-on-crit).

But channeling has an extreme downside in modern POE which is that you have to stand still while channeling. You can circumvent this using 2 whole links, Cast While Channeling and a travel spell. But this is prohibitive since you're not getting any damage from the travel spell, so you're down two whole links worth of damage scaling.

Solution: Give us a support gem that triggers a travel skill while a linked skill (maybe spell, or non-movement skill if you don't want to support cyclone with this) is channeling. This means we'd only have to sacrifice 1 support gem, which is maybe ~30% more damage, for maneuverability, rather than two whole links.

This would really help bring channeling skills up in power level given that speed is king.