A friend of mine got his Bounty Hunter drilled up, then went out and threw the first 26 in a row. 300-300-24X for 84X out of the box.
Best I've ever done was a 279 (9-, then struck out), and a 290 (9/, then struck out). Oddly enough, both times were with polyester balls (a yellow dot I bought and an AMF Boogie I borrowed). I did, however, shoot a 300 the first game I used a friends black HAMMER. After that, he gave it to me and I still have it.
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Good transactions list in my profile
ILLEGITIMI, NON-CARBORUNDUM!