[Pennsy Guy]

Not sure what you mean...don't all PB's have built-in holders? Most add-on holders slip into the existing holder & look like an angled "T"...Of course, a safety line should be a must!!! Mostly, these "T"s are for dead sticking swordys..mostly frowned on for tuna as they're near impossible to get around when "walking" your fish...guys going for swords are out of the way as much as possible..... You can drill through your holder at a point to be determined by you & put a through bolt in to keep the holder supported in the boat's holder if it doesn't have a pin in it's bottom....Hope this helps....Catch em up...