May be you're over training. So, the new and softer bands could help you. TBG 25-20 is a strong set.

 

The rubber eventually just gets worn out man. If you tie it with string it will typically tear first. But if you use collars etc. the rubber will usually wear out and become "dead" before it actually fails.

The higher performance we get comes with the trade off of shorter lifespan.

 

Im pretty sure that Inconvenience nailed it. Slingshots are so simple that it only takes years to figure them out.lol

 

Another thing I forgot to add. First of all, 25-20, at 500% elongation feels ok to me, not hard, not easy, just normal. But when I put the 20-20 on....it felt harder.... Both tbg, but from a different batch. Tomorrow I will put the old bands on again and test them out, just to rule out the, very high indeed, possibility, that I was simply having a bad session.

 

Skropi it absolutely makes sense that the older rubber would be worn out and thus less potent than the thinner and straight cut rubber.

Every time you stretch rubber some of the molecular bonds are going to break. Eventually when enough of these break so much of the rubber will have lost it's elastic qualities that the whole piece will feel "dead."

A smaller but newer piece of rubber can literally have more active mass than a larger piece of rubber that has had many of it's bonds broken.

 

Skropi it absolutely makes sense that the older rubber would be worn out and thus less potent than the thinner and straight cut rubber.

Every time you stretch rubber some of the molecular bonds are going to break. Eventually when enough of these break so much of the rubber will have lost it's elastic qualities that the whole piece will feel "dead."

A smaller but newer piece of rubber can literally have more active mass than a larger piece of rubber that has had many of it's bonds broken.

Aaaha!!! So it was not in my imagination as I thought! Thank god I found cheap tbg locally and I stocked up a bit