Oh man, you must not have faced magnetic north when quenching. That's why you got the warp...A last fine-straightening before the big time investment that is finish grinding. I managed to fix all big warps and wandering tips during quenches. So far completely lossless. View attachment 111794
Many of them have a light sori, but not sure how much if any I will keep though finishing.
View attachment 111795
Back to the urine board...