I will only use the PCS pipe after using many different pipes prior to using it. Anyone that has tried that pipe that I have suggested to use it have given me nothing but positive info.

We have used it on the 70 Polini, 90 Apex cylinder that was sleeved to 50mm with a 45 stroke and also a Malossi Big bore setup.

But as someone said, you will get 10 different opinions on this topic