you are your own gunnea pig
You can also order the strongflex ones. Just to see how they hold up and see how you like them.
They are much cheaper than the powerflex ones.
If you think they are by no means too hard, you can always order the powerflex black series.
If you think they are quite stiff, the black series might be too hard.
But even then, the black series probably have the purple (shore80a) core, which is adjustable. And that will for the most part determine the stiffness, the black top part can be considered solid by that point.
Of course you can verify at powerflex if the black series in fact do have that purple core.
I wonder if you could order the black series insert seperately at powerflex at a reduced price?
