Choosing piston

The problem I've had is very few of the ads for stroker kits give piston part numbers, or details like valve reliefs.
I called Summit. He said none of their dish pistons for SCAT kits have valve reliefs. Then he said all their SCAT kits are for LA engines, not recommended for Magnums. Wrong rep to talk to I guess.

Assuming my block will be shaved about .010 with 61 cc chambers, .040 gasket, we have calculated that I'll need something in the 23 - 27 cc piston to stay in the 9.5 to 10 CR.
Planning hypereutectic, unless forged are within $100 or so.
I'll have more conversation with the machine shop before an order is placed. I'm just trying to know what's available in advance.
Your dish cc numbers stand up with piston-deck clearance right at .000" for the SCR range you want.

Usually the pistons can be deduced from the SCAT data on particular stroker kits and perusing the catalogs. And they can tell you what they are.

Which block? Magnum or LA?