Anyone know where to find Owner Ultrahead "shaky type" jig heads? They work really well, but are very hard to find. I've checked every online tackle store I can find but have had no luck. They have the screw lock head, but also have a "centering" post in the middle of the screw. Dicks in Newport News, VA had them, but only 3 packs in 1/8 ounce. Needless to say I bought them all, but was looking for 3/16 and 1/4 oz.