How long has your 1/4" HC been buried....and have you dug it up to check it?Normally I agree with you but I have 1/4 in HC buried and have no problem with its longevity. One part of my run we recently decided to expand and pulled up the type you described and found rat holes everywhere in the ground. 3 ran across my wife's feet and well i think she peed a little.
If you have small rodent problems,
HC is definitely an obviously appropriate choice(maybe I should add this to my blurb).
I still stand by 14ga lasting longer and easier to lay flat.
