Does the job w/o extra weight
I used this all weekend at an avalance rescue training course and it did the job perfectly. It is on the short side but if a victim is buried deeper in Cascade Cement than this probe will reach, they are statistically dead before I could get to them.
It's also long enough to probe for a 3-man snow cave. Alas, it missed the pine tree that odorized my last cave, but that wasn't the probes fault. :)