Tough question as everyone is somewhat different in their form and release.

Keep in mind that those 55-60 spine arrows are for 28" . You' re going to need to figure total length including broadhead clearance. So, you' re now 29" or more in length..further weakening spine.

If you can, find someone with some of the different arrow spines you want to try.
That' s an excellant way and most people are very willing to help.