in fact, I'm not even sure we can make the comparison.
I think so, the strings are very similar, often of the same gauge, but to say that they are identical is only one step that I wouldn't take.
on the other hand, I believe that certain PP strings work differently, but perhaps better than certain other major brands.
for my part, having tried them for years, it seems obvious that the references for example like Weiss scorpion and PP concept are the same (gauge, color), but I am convinced that having tried them both, I find that the PP concept has a little more softness than Weiss!
as true as for the plus power of PP and the poly plasma of signum. visually, poly plasma has pearly reflections that most power does not have. For my part, I find the plus power of PP a little more flexible and explosive than the poly plasma of signum.
I could also cite the comparison between alu power and cyber power, in this area, the superiority of PP is not in the order of gaming characteristics, but more in Tension maintenance.
If I do the math, I would say that:
I prefer plus power to poly plasma, but plus power lasts less time (replace every 5 hours)
I prefer concept to scorpion, but again, it has to be cut after 5 hours (for the 1.27mm), 4 hours is already too much for the 1.22mm.
and finally, I find cyber power playable for much longer than alu power (+12h).
All these features, combined with the very advantageous price of PP, allowed me to save considerably on the string budget. (around €300 per semester) which allowed me to take two other frames (for a total of 4 to 5 identical frames), in this case, PP becomes very interesting, because it allows me to obtain 4 to 5 frames, and thus be able to worry about replacing the string every 2 to 3 weeks!
but this option only works for players who play more than 15 hours per week. and who can Restring their rackets themselves.