The longest "sleeves" I see are the ones that used to be mandated for RX running down outside block walls behind the sheetrock. Back in the olden days in Florida, they said the 1.25" was measured front to back from the drywall. Now they let it be horizontally from the furring strip and allow that to be a stacker. It was a bad decision in my opinion.
That only protects the cable from the sheetrock guy who knows where the wood is supposed to be. The homeowner, "probing" for the stud with a nail, is as likely to hit the wire as he is the stud.
The sleeves they put in were usually terminated with a EMT connector in the box and stapled where the RX came out so they were bonded. Occasionally, in newer work they had the EMT to RX connectors on top but usually the end was polished or they had a bushing on it.
I have seen them just dead end at the RX connector at the box and thus they weren't bonded. I thought that was sloppy work.
