Anyone use Probe Pistons?

So, I just got off the phone with the sales rep at Probe. According to him, there is absolutely no difference between their FPS pistons and TRW forgings. On Probe's own website, they had this to offer:
Forged of VMS-75 High Silicon Aluminum for lasting performance.
Light weight forging design is typically about 70 grams lighter than TRW’s.
CNC Diamond machined skirts and ring grooves for increase power.
Tight piston to wall clearance design for better ring seal.
Reinforced piston skirts to eliminate piston skirt collapse.
Radial Anti Detonation Grooves reduce detonation by clipping pressure spikes.
Pressure Equalization Channel enhances ring seal, making more power and increasing fuel economy.
Increased valve relief depth for high performance camshafts.
Offset wrist pins for reduced noise and lasting operation.
Stock size rings grooves and press fit piston pins.

Seems like a little difference to me. The whole point that started this is I am looking for a new set of pistons that will clear a 1.94 intake valve without notching. The sales rep, obviously, said theese will not. BUt, as clearly stated above on Probes website it says "Increased valve relief depth for high performance camshafts." So, does anyone run theese pistons with say a 1.94 intake with about 530 thou lift? Or simply know if they will clear? Thanks.

Yes, I realize there are a myriad of piston manufactures that make products that will work with my intended application, but the FPS pistons are only $315 a set new. That's quite a difference from the 5 or 6 hundred dollars for JE, SRP, Wiseco and others.
Wicked93, are you running the FPS or SRS seies pistons? I know the SRS will work, but they are also around $450 a set.
I will be running inline heads, looking for about 9.5-9.7:1. Thanks for the responses.

Yes, while I appreciate the replies, my inquiry was not as to whether they were quality pistons, but if the FPS's did indeed have larger reliefs than stock, or if I would have to move up to a more costly alternative. So, has anybody used a set of the FPS's where an otherwise stock unit would have required notching?