I doubt that any of us are in Joerg's league when it comes to power shooting but we survivalists are going to need a lot of power if the **** really does hit the fan. Power for defence against 'zombies' (or whatever ) and the power to take larger game. I'm not talking about making records or earning badges. Just the creation and use of practical sling-weapons that will do the job. Apparently Madison Parker has taken deer with a slingshot. That is the sort of power I'm talking about. Firstly of course I'd like a place where we can talk about rubber...which will give us the power that we need. But it's more than that. At that level of power other considerations arise that must be considered....such as the strength of the sling itself, the connections, and the pouch. At this level of power anything that can break WILL break, so everything needs to be very solid, and able to remain so for quite a while. It will also need to be low maintenance if we're hoping to survive in the wild. The ammo of choice and its relation to the propelling rubber is another important issue. I would be very interested to hear what y'all would rely on in this sort of situation. Both my survival slingshot and slingbow are very simple , compact and strong....no armbraces (other than the paracord ones), no extended forks. Partially because they need to be compact, partially because it is easier to do 'power flipping' with a simple frame. For the bow there's no issue on rubber : TTS for me every time (fortunately I was able to get some of the old stuff, I gather that the new TTS is not as strong). I like it cut long as I tend to shoot huge bamboo arrows, sort of junior javelins! and, of course, there is a lot of bamboo growing round here...I just need to carry a supple of 6" nails and some gaffer's tape for the fletching. The slingshot is currently fitted with Dankung 50/80s (my ONLY piece of 50/80 ) If I could source a lifetime supply of this I would look no further. The performance is wonderful and it has lasted for quite a while which is a huge plus from a survival perspective Unfortunately the only stuff I can get from Amazon is TTB. I just made a shooter identical to the 50/80 one using TTB. It still has a lot of power...but takes far more work than the 50/80s to get it. Double .04 natural latex and triple .03s also give tremendous power but they don't seem to give me the longevity of the heavy tubes. Let's face it...if that zombie is bearing down on one then the last thing one needs is a band snapping!! I'm still longing to get hold of whatever Madison uses and i gather that purple DubDub is up there with the heavy hitters. If anyone has used either I would love to know more. What would be your choices and why?