if your special “design” was so special, I’m sure you would have results to show off that are clearly better than what we’re getting with the jars, no? You’re arguing with the king of diamonds on here, so I’d expect your product to be better than @J12’s.
You don’t need an absurd amount of pressure to grow big stones, the key is the saturation levels and the slow evap in that range. Pressure is only added to slow the evap down and keep it in that desired zone