Riot:
Howard Hill Archery says a rule of thumb for Hill bows is 115 + bow weight=fps. I don't know what arrow weight that is with. I'd be interested to know how your bow chronos,at least for academic purposes and to test their belief. I have a 69@29 that I will chrono this weekend, and a 50@29 Wesley Special takedown that is coming soon. I hope. Not that I am eagerly awaiting it or anything...
Of course, as my brother said to me, why do I care what it chronos, as long as it gets the job done? The speed isn't exactly the point of longbow shooting (but it is good to know).
Either the Martin or the Hill will take care of business. Shoot what feels best to you.
Bill