Genius Installer Tool? Extension Firestop Caulk Guns

Does anyone use these when caulking holes in Firewalls?

Take a look:

This seems to be fairly useful to me, because an installer can caulk a high penetration without using a tall ladder. Like a 4 foot stepladder to do cable runs 8' or 10' high.

On many job sites, there is a 'magic boundary' at 8 feet, where if you have workers doing elevated work then they need spotters, high work approvals, or even tie-offs. Using this means an integrator could potentially avoid double labor costs doing firestop work.

On the downside, the installer using it would have Popeye forearms and get rocked up biceps using it, because it has to get heavy!

Is this extension caulk gun crazy, or would you use it?

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