How to avoid Corner Pin TOP Warp

Using the Corner Pin Top, but am finding that it’s warping the output rather than distorting the input linearly. I’ve played around with the grid refinement parameter but to no avail. Is there another method to do this image translation so the result is linear?

Thanks in advanced

Try using the Stoner or KantanMapper components that already come in the Palette

Thanks for the suggestion - might incorporate a simple UV remap method minus all the Stoner UI elements.