I used tube band, then cocktail tube band, theraband series and now SHESHOU band. Don't have a chronography in hand, I don't know the exact number how fast a slingshot shoot, but I am quite sure the SHESHOU band is the fastest among all bands I used.
SHESHOU guru flatband
I am a superfan of slingshots, and in my opinion,
slingshots and darts instead of arrow are one of the greatest combinations. I typically put slingshots in the same category as a fishing pole. I’m pretty sure I remember slingshots being standard equipment for me and the boys in my neighborhood as a child. The 'arrow' I used with a slingshot was in fact a big nail with some fabric strings at the end. The strings were for directional control when arrow flied in the air. It's a simple and crude slingshot arrow, but sort of functional. I got many basses with it. Now I use the professinal darts like below, the accuracy is much better than shooting a real arrow.
5 pieces 'fierce flying shark' slingshot fishing darts
"
5 pieces of slingbow bands-cocktail bowstring edition
"
2018 New Professional DANKUNG slingshot fishing set
Much to my surprise, here a 70-year old man can make the slingshot pouches.
That is a simple light weight steel rule die! It's not very professional, but the material is very good, and is made for a long life.
I think I could buy a really good heavy duty solid die to do the same thing here in the USA for about the same money , but as the blacksmith is just at our town, very convenient to buy and communicate with him. Center hole is necessary for my pouch, he just added it to the die.
I've bought 5 dies from him, and visited his home more than 10 times. After a long time of trying and testing and feedback for modifying. Now they works well, I use a hammer to cut the pouches. Making pouches with die really helped me a lot to understand the many things of slingshot shooting.
The pouches had heavy thick residue when came out from blacksmith's studio, I tried the laundry detergent, soap.. and finally found the Listerine is the best for cleaning it.
There are many funs of DIY pouch with the slingshot pouch dies, but for serious target practice, I prefer the commercial laser cut slingshot pouches