Don't mind the argument for LOP stuff but it will take a lot of convincing to take the needle through a limitation.
2 issues:
1) I'm planning to try leaning to the graph fuel flow. Thus it will go straight through peak before it has any time to react.
2) Exactly how accurate do you think the TIT gauges are? I've calibrated ours at 50 degF intervals. Standard the gauges would be lucky to be +/- 25 degF and probably worse. They are not cold juction compensated either, which means their readings are affected by ambient temperature. This probably adds another +/- 20 degF. So, I think you can afford to take the 1650 degF limit with a grain of salt.