i always thought the weight tubes would change your spine so i never tried them

you guys are saying that you havent seen any change in spine??

id like to add a bit more weight to my arrows...in the 430-450 range right now...

hmmmmm the ole mouse is running on the wheel....actually might be going to the patent office lol!

ok ok....heres my idea.....how about gluing the weight tube to your inset or somehow securely adding the weight tube to the front half of your arrow? no extra weight behind the front half...THAT would give you more weight and bump up your FOC!

am i thinking too much or does that sound like a good idea?? i know you can get brass inserts and probably accomplish the same thing in a better fashion.....buttt just thinking