Cylinder kit SIP PX200/Rally

Does anyone has any informatiom about the cylinder kit SIP PX200/Rally with 3 transfers?.
Do you know if it`s reliable?.
What can I hope about it, more power, any special quality?,
any information will be very helpfull.
Thank you for your help.

Would that be the Sip tuned Malossi kit or a Pinasco or a polini or other, (most have three transfers, or more.)?