I've seen stated here several times not to get a broadhead to big (cutting area) for your setup, which I do believe in very much. So how do you know when you are going too big?

I shoot a lower energy setup and am trying to find the right balance between cutting area and penetration. I shoot a Bowtech Tomkat at 60 lbs and 28" draw. It will be a 400 grain arrow at around 250 fps. In the past I have shot thunderheads and 4 blade stingers, but am seriously wanting to try Slick Tricks this year. My initial thought was the magnums, but am second guessing myself into the standards. I don't know if my setup has what it takes to push the magnums on deer. My hog broadheads are the old faithful Magnus II two blade, 1 1/4" cut. No penetration issues there. Thoughts on this?