The FMs couldn't "go upstairs," that issue was still there. They continued to see combat off the jeeps and in addition to that were in large part put to base-defensive and various utility uses.I think the FM-1 2 sort of fits parsifal's scenario as they were developed for the smaller escort (Jeep) carriers and were refined to accentuate the most practical qualities of the Wildcat. They also served til the end of the war.