Hey, welcome aboard! Glad to have you here.

It can take time to find a length you're comfortable with, and longer after that to feel comfortable with any length - within reason, that is 

Don't stress about it though - skill and ability will come naturally regardless of sling length - I'm sure if you use the 27" sling a bunch you can eventually get quite acquainted with it  . My first long-term sling was a little longer than I think it really should've been, but after a fair bit of use it started to feel like an extension of my arm, and the awkward feeling was replaced with natural form and mechanics.

But ultimately, go with whatever works best for you. And I reckon the nice thing with paracord slings is you can easily shorten them by retying the fingerloop and grip knot lower on the cords.

Did you make that sling, by the way? It looks great!

To scale down the image, you can open up the original image in a photo editor and scale it down that way, and I believe you should be able to edit your post to swap images. Otherwise, one of the forum admins will scale it down for you 

There's some details for scaling down the image on Windows 10 and Mac here https://slinging.org/forum/YaBB.pl?num=1676672557

And no worries - with time I'm sure you can make some gorgeous slings. It takes practice!

Also I'm sure we can all relate with the trouble of not warming up. I'm a young whippersnapper but I definitely feel it when I forget to warm up 

Thanks Joe, I’ll make less work for y’all in the future. Thanks for bringing me aboard!in anyone happens to be down Pensacola way let’s get together.

Welcome from New Jersey.  Golf balls are my favorite ammo also.