My DL is 30" should I cut my arrows down or leave them full length?

What type of arrows do you have and what is your draw weight?

cabelas stalker xtreme 400 55lbs

1 inch past the end of your rest should do it

Unfortunately I don't know anything about Cabela's arrows. I can't get to their website to look at the arrow selection chart right now.

Was a spine chart included w/ the packaging when you bought the arrows? If so, just take a look at that and it should tell you the correct length.

I can look for the spine chart later, unless somebody else gets an answer for you before then.