4000+hrs in KingAirs, mainly 200s but some time in 90s.
Use of Ice vanes is sound and good advice. On ANY surface.
If you have Raisbeck, then there is no penalty.
If you donīt, you have to stick to the manual, if the A/I on tables allow your departure, fine if not, donīt use the ice vanes on that particular takeoff. To use them as often as possible will save on maintenance.