Benefits/Drawbacks to dropping tension on POLY string??

[Loco4Tennis]

i just started using technifiber polyspin 16L on mains,
i wanted to try out poly string/synt gut hybrid for a while,
i have it strung at 55lbs with soft techifiber 17g crosses at 58lbs
the main problem is that my arm get tierd quick because of it i think
is 55lbs too much? can it be strung at 53lbs? are there any benefits/drawbacks to dropping it that low?, is this a normal range of tension for a poly?
what the lowest you've strung a poly? and what did it feel or play like to you?

[YULitle]

I've strung some pretty low, and I never thought "this has too much power." It seems bottomless. But, for say a 55-65 range, I would like to try 40 to see if it truly is bottomless. I doubt many would want to traverse much lower.