I just bought an EZ and I'm not a big fan of the white dot sights. I'd like to replace them with some tritium night sights. I got two different opinions (from sellers) on the Truglo tritiums. One said yes, they'll fit, the other said no, they won't and steered me toward the Truglow Pro set. I've never replaced sights, so I'm at a loss. How does one determine what will fit and what won't? The non-pro set says it will fit a Shield, but does not specify the EZ. Is there somewhere I can look to get the info? Thanks.