Be careful what you ask for, you might get it! My flight test work with a Twin Comanche last year demonstrated that there is a POH, and an FAA approved Flight Manual, and they are separate documents, with the FM appearing very amateurish. It, however, is the authoritative document, with which to fly the aircraft.
Though I did not find data which conflicted between the two, I did demonstrate with flight test results that the POH was quite "optimistic" in the climb performance data offered. The FM did not offer comparable data, so in truth, there was really no FAA approved data for certain performance aspects, where you would expect to have it. The Piper marketing department of the time, perhaps had had an influence upon the data in the POH.
I have never flown the single Comanche, but I sure enjoyed the Twin C. In the Twin C., special attention seems to be necessary to keep the nosewheel light on the runway, consider that for the single too....
Have fun...