Thanks guys.
I know that the standard RAMI CZC front sight is 4.5mm and they measure from top to bottom of the sight. Dawson measures in inches and measures from the top of the slide to the top of the sight. Converting 4.5mm to inches and subtracting the dovetail depth should give the appropriate height to order from Dawson.
Just trying to avoid as several times in the past, multiple orders from Dawson, install, shoot and re-install to achieve POA/POI. Especially now with the Covid and mail is hung up in the Austin Post Office. Have an order now that has been delayed two weeks and it's still at that post office.
Best regards