Bamboo Arrow Question

[northland archer]

When buying bamboo shafts that are already hand spined, are they spined at 28" or at the length they are being sold?  I am looking at a few shafts that are 39.5" long and spined at 60-65.  If I cut them down to 29-30 will spine change?  I have a bunch more questions, however, they can wait until a later time.  (i have read many of the posts on this subject but still a beginner) Thanks for your input.
Treavor

[Mechslasher]

if a spine is given then they should be spined at 28", but you would have to ask the seller to be sure.  to equal 60# at 39.5", the shafts would have to spine somewhere around 110# with a 125gr. point.  any time you change lenght or point weight, you chance spine.

[Grey Taylor]

Yes, what he said.
It should be the same issue as the POC or spruce shafts we usually use. They're 32" long but they are spined for a 28" length.
Good idea to check with the dealer, though.

Guy