i ordered swim jigs from Siebert and NorthStar, Siebert was 3/8 oz and NorthStar was 1/2 oz.The heads are exactly the same size,i have some Siebert in 1/2 oz and you can see the different in the head size..Does NorthStar have a smaller head or are they the wrong size?I ordered 14 of them and waited 3 weeks for them i hate to send them back,but that gives me a lot of 3/8 oz and a few 1/2 oz. Thank You and GOD BLESS