Ive modified several of my molds. Like the high temp gasket maker, dremel drop out, and use hot lead. Im just worried about pouring the older molds that have a ball type skirt collar if i can get it to fill properly. Like the older arkie or sparky and some old spinnerbait ones. Just worried If I add the wire keeper is wont fill right. But I guess you’re right, just like the other molds I done, i just need to try it and see how it does. I don’t know why this bothers me more than the other mods I’ve done. I’ve done mods to make my own spinnerbait mold and other dremel mods. I just didnt want to try the wire keeper and then not like it and have to deal with flashing I guess. There are one or two of my older molds that i still have some trouble with even with all the tricks and getting the mold and lead hot.