I've been away for a while. I'm way late to this conversation, and I'm not going to say anything I haven't said before in other threads on this.
The poly sword I use is the same one
from this video. Note the date for upload: March of 2010. More than two years ago. It is the same one I have posted pics of elsewhere in this forum.
I still use that very same rod as my regular practice sword. We have completely beaten the tape off the leading edge of the rod.
Twice.
The grip tape Amos put on it is wearing away.
The rod itself still shows NO wear.
I have used it as the regular newbie loaner sword at my practice. It is my regular practice sword. It has gotten a LOT of use. I have also used it, with mixed success, in tournament.
In my experience, polypro is denser than rattan, and slightly more flexible. That means a 1.25" rod of poly will be approximately as heavy as a 1.5" sword. But because it flexes more it will,
on average, hit about the same as a 1.25" rattan sword.
However, because it's heavier but more flexible, it doesn't hit the same as rattan.
Short stem shots near the handle hit harder. Because it's heavier.
Tip shots, or even those from above the sweet spot to the tip, hit lighter if you like swords over about 28". Because it flexes more.
The material is not, for that reason, competitive for people who like swords of a non-trimarian "Normal" length and ever throw outside blows. It should be wonderful for short swords and really great for daggers though.