Fantastic in quality and design.

Don’t be too quick to infer how much faster tapered tubes might be compared to untapered. You need to compare at the same pull force and draw distance (to fork). Whatever setup you choose, if you had double the pull force or draw distance it’s quite likely to be the fastest!

I've learnt that surgical tubing is the mosted used for serious homemade slingshots. But in my opinion, 'homemade' doesn't mean you must use material in home. You can use any material as long as you make them at home. I used to buying commercial tube in meters and make my own bands at home which should be 'homemade' too.

this is one I just made. Can you image what my slingshot looks like?

There aree only 3 parts make up of a band, pouch, band, tying thread.

Attaching the bands to the frame The rubber attachment is a vital part of the slingshot: A bad one kills your bands, makes the slingshot inaccurate or can be very dangerous. Be sure to choose one that fits your kind of bands and slingshot.
I think this guy has got the core points of how to make a homemade slingshot band