Arrow question

[mjbtexas]

I am shooting a Fred Bear Encounter with the following set up:
50-60# Limbs, 55# Draw Weight, Length 28.0 inch

I am about to get another doz arrows and wonder if I have the best spine weight for my set up:

Gold Tip Hunter's 5575/400 shooting 100gr NAP thunderheads.

Is this a good arrow choice?

Any sage advice on set up welcome.

[Bowtechshooter]

that arrow spine would work great if the arrow is 30 inches or shorter (id go shorter since broadheads like stiffer arrows) and the thunder head is not a bad broadhead, I have put several things in the freezer with them but I think there is better.

[mjbtexas]

I do have shorter arrows. I'll measure too.

Fun starting to really fine tune everything. makes me feel more confident when my heart is racing 100mph to shoot straight.

[SB09]

That is a good arrow. But, spine is going to depend on length of arrow as mentioned above. You should be well under 30'' arrow with your DL.