@ekelsey15
I took a couple pictures. They aren't the best, but you can get the gist of it. This is my beta version, and I plan on making some changes, however this was adequate for the 2018 season.
The slits were enlarged in the field. I needed them to be positioned lower, and just ripped them down to where they needed to be. I would add some type of gather to the slits, so that my phone could not be seen from the side.
The top of the "basket" is attached to the tether biner via a cheap non-load bearing biner. I inserted a small lenght of stiff wire at the top where the cheap biner is. This helps keep the basket open. Both of the lower sides of the basket are attached to the loops on my saddle via S-binders, that are attached to a small cord that runs along the perimeter of the basket.
BTW if you think this thing is over sized, there are two reasons.
1) it needs to be wide enough to see the phone.
2) I also keep way more than my phone in it. (e.g. Grunt call, rangefinder, snacks, etc) it is nice to not have to reach for anything!
Other changes might include
1) changing from regular paracord to elastic cord. This would make it more flexible, and possibly keep it in place better during high wind.
2) add pockets to the inside so that certain items have their own designated spot (e.g. Grunt call)
I also my have to name "The Marsupial Pouch"