Just a note on spine:
For a compound bow you can't be over spined, only under spined. There's a reason competition arrows are only 150 spine. Arrow spine goes stiffer as the number decreases. Spine is measured by the amount of deflection in the arrow when laid horizontally with a weight in the middle. so the less it flexes the stiffer the arrow.
My set up is 28" 300 spine Axis with 100 grain ethics outsert and 125 gr ramcat which will push me to about 575 or so. One perk of your arrow being so short is that it'll be very easy to manipulate the FOC.
For a compound bow you can't be over spined, only under spined. There's a reason competition arrows are only 150 spine. Arrow spine goes stiffer as the number decreases. Spine is measured by the amount of deflection in the arrow when laid horizontally with a weight in the middle. so the less it flexes the stiffer the arrow.
My set up is 28" 300 spine Axis with 100 grain ethics outsert and 125 gr ramcat which will push me to about 575 or so. One perk of your arrow being so short is that it'll be very easy to manipulate the FOC.