I weigh 180 pounds, just FYI.
And you're right. It's smarter to run cases that likely will break and cause you non-stop issues than ones that won't. What was I thinking?
Here's a crazy idea...
Buy the billet cases. Then diet for 3 days before the event. Bam, there's your weight savings. But you're so smart, I'm sure you would've figured that out.
In addition, if a few pounds will be the difference in a win or loss for your 220 pound jockey, your 150 pound competition must be riding fucking junk.