Well this is proving to be more difficult than I thought for some reason, I keep getting lousy results despite following all the steps. Mind if I upload my arm mesh and maybe you can try working it out and letting me know how it goes? https://drive.google.com/file/d/1scU_Ai0t_-DxPNUAz-O1Q1afUE3WRnOH/view?usp=sharing