I did some research on 1.5" vs 1 3/4". On and 1.5" if you use a jig head with a barb 1/32oz is the biggest you will be able to use with the 1.5". 1.75" you can use up to 1/8 jig head. Plus, with the 1/4" longer legs the 1.75" has a lot more action.