I've found more gauges that are off. The 237 is typically in the 43-45psi area. 1-2psi higher probably won't hurt it, so I would try it out and see. The BLM's will usually drop a few numbers to compensate.
Eric
Eric-Thanks for the reply. I'm trying to track down why my BLM's are locked at 90. I just ordered one of your chips to see if that would help my BLM's. My gauge is pretty accurate. I actually make them and used to sell them on here years ago. It's a grade A gauge.