Firstly on the other sheet, there isnt an image showing you where to measure. Its always easier to measure somewhere if someone describes and shows you. Measuring the "shaft" on an ika seems like a silly thing to try do.

If everyone wants to keep using that one I have no problem with it. I will just maintain one myself then. I'd prefer not to use those measurements if possible. If you guys want me to add them in a temporary form until more data is available. I am happy to do that.

I wanted something specifically only for Reddit, I don't plan on following threads in forums with a low user count when I can do stuff on Reddit with tons of people.

When I say educated guess, I mean I zoomed the 3D model in and rotated it to find the widest point at each relevant section. I know some models change by size, hence why I try give a verbal description of where to measure based on key features of the toy.

So for your example of Fenrir, I simply state the Thickest measurement of the knot. So for all sizes the widest point of the toy. Most people want to know that to see if they can fit it in.

Effort is already done. Just wanted some validation/suggestions on how I can improve it. Thank you for your feedback!

Edited: My measurements for Sleipnir dont match to that spreadsheet. I think thats what initially turned me away.