Ever since Science was introduced, there's been a need to check spent books on specialists out on mission, especially for Explorers/Scouts. I doubt that will ever happen, but..
So Recovery has been added with Expedition searches.
How about also add it to Treasure and Adventure searches by splitting current search time in halves with Recovery AND make it possible to reach the "science tree" while in recovery?
(Also, change paying gems to instant recover instead of halve search time.)
That way players will have more time to check their science choices on Explorers/Scouts (and perhaps more gems will be spent on instant recovery compared to current halve search time).