Roy, you got impressive results from your C/H, but alarm bells are ringing.
From your figures you should have about 58lb on your fingers at full draw and according to Borders minimum arrow weight chart for this bow yours should be at least 468gn, this works out at 8.06gpi, where as your 440gn arrow comes in at 7.58gpi.
The C/H is designed as a hunting bow and enables you to throw a much heavier arrow at a speed equal to that achieved by a heavier bow.
It also states that using arrows below the recommended minimum weight will reduce the life of your bow.
I have 53lb on my fingers at full draw, my arrows weight in at 545gn, that works out at 10.2gpi. I have not shot mine through a chronograph but get excellent speed. My reason for purchasing a C/H was so that when I get to hunt next, swapping my field piles for broadheads makes no difference to how I aim or shoot the bow at my effective range with a small increase up front of 10gn making a total arrow weight of 555gn.
I feel compelled to say something Roy to arm you with knowledge that could prevent you wrecking your bow in the future.
Attached is picture of mine, hope I've copied and posted it right !
Hobgoblin
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