Found a way to fix a warped plate wing with KF's
Cut and score KF plate approx middle of warpage
Make sure cut is parallel with centreline
Hot glue the score line counter bend and wipe off excess (making sure you spread it well for grip)
Counter bend wing and hold (over bend slightly --it pays to practice and eyeball before gluing)
Hold in this position till glue line is cold
Wing will relax to near on true
Great, I did just have a thought , when you do paper cover a piece of foam you do both sides at the same time so it dries straight so what if you minwaxed one side and as it dries it will shrink the paper pulling the warp out???