Guys,
Urethane CAN be weaponized, but not usually if only one person is throwing it. It does create some carry down, but takes a while for one single person to do it, unless he's throwing directly in your breakpoint consistently.
And yes, the adjustments would be considered "strange" by many resin era bowlers who never experienced the urethane era. Some of them are directly opposed to resin adjustments.
But, if you're given the right condition, they work. Last season, I was averaging as high as 217 at one point. The lane man quit though, and screwed the machine up before he left ( as revenge I suppose), and it took them almost a month to figure it out and fix it. It affected my urethane shot FAR more than it did for resin, but they finally got it back like it had been, and I ended up at 210.
No, not great by today's standards, but not bad for a fat 56 year old guy bowling three games a week.
IT CAN BE DONE!