Well guys, are you sure you are measuring your sharks length correctly? Where from, fork length or overall? Remember something too about sharks in our area, esp. Blue Sharks, when they come up here and you catch them in the early part of the season they are more often then not, lean, sometmes very lean. However, most of the time when you catch them around now, they are MUCH larger from feeding well all summer. Tog, you have caught a lot of sharks so I'm sure you know what the term "shoulders" mean. Makoman16, when did you catch that skinny little fish, in the Spring?
I went digging through some old files and found my original stuff sent to me by N.M.F.S. for the Cooperative Shark Tagging Program. I have listed below what they sent concerning Blue Sharks. I think you know the amount of data they have collected on sharks, esp. Blue Sharks, they make up the VAST majority of tagged fish.
Blue Shark - Fork Length
8' 209 lbs.
8 1/2' 253 lbs.
9' 303 lbs.
Tog, by the way, they show a Mako in your 820 size range as:
10' 732 lbs.
10 1/2' 853 lbs.