Hi , Waterlogged , I am happy , that you like this lip design , it would surely be worth a try on your local musky , of course on a bigger lure .
As I wrote in my describtion , I utilized a kind of hobbyist router machine to cut the lip to shape , but I believe , that it can also be made with more simple tools , though this would take longer .
I would first cut out the lip shape with a saw , the blade should not be too narrow for better guidance to achieve straight cuts , after take a file to smoothen the sawcuts , for the 90° corner use a triangular file . Make the cut in a way through the round blank , so that the belly screw eye would pass crosswise to the woodgrain .
Sometimes some parts of the grain would break away whilst shaping such lip designs , these are later closed with woodfiller and sanded to level .
When finally your sawcut is finished perfectly and angular , I would suggest to employ a "Dremel" with it's larger coarse sanding drum to work on the top lip cupping , first sand exactly in center to desired depth , parallel to the previously cut plane , after take away material from the sides of that cupping to achieve an equally curved shape . Be very careful about not sanding into the bottom offset portion of the lip , also not over the two sideward edges of the top lip .
The problem , that now occurs , is to furnish the 90° corner to a sharp kink down the cupping , I would use a pointed "Dremel" router bit and a very pointed and sharp carving knife for the job .
If you don't have a "Dremel" , the only way to furnish such lip is to first saw and file it as mentioned above , then take a pointed , thin-bladed , sharp knife(carpetknife with interchangeable blades) and cut into the woodgrain of the lip top portion , at the kink of the 90° offset lower portion and use a small halfround woodchisel to cut the cupping , by always separating the woodgrain deeper at the kink , so your chisel won't cut deeply into the kink . For this work you must fix your blank in a vise , you might place a piece of balsawood(min. 1/2" thick) on either side of the blank to avoid blemishes from the vise , some layers of cardboard , taped together , will do as well .
Finally sand everything smooth , as said before , your last aid for missed cuts is the woodfiller , but try not to use it too much , it would surely take some concentration to accomplish the job .
Hope , that you could follow my explanations a bit and understand , what I mean , sorry , my English vocabulary is limited , especially , when it's about technical questions .
