Torque Converter? Where am I at? What is compromised?

since we're talking converters, are the units from Dynamic, PTC, Continental etc., better or higher tech than the Turbo Action converters. Like the S800 10" (17805).
Is there something magical in the units from the newer companies that aren't in the Turbo Action, I wonder when I see comments about getting a custom converter that will flash to 4200 and acts just like a stock converter when driving easy.