Don't know, call him and ask. My old style triggers he converted are nice, but the new style is simply awesome. He told me he would upgrade my older releases at no charge. This man is one you want to patronize.
Send him one and you will see. The Krieghoff has a quicker lock time, but Phillip's updated release feels wonderful, as does the Krieghoff. The sets are very close, and the Phillips release is not quite as fast as the K-gun, but they feel a lot alike. I don't release like I press a trigger, so I do not feel any creep in a release.
What makes a Remington 1100 release crisp and fast is no travel when you release. That can be adjusted with a set screw in the trigger guard. A trigger shoe can do it sometimes. My Schwab trigger was made that way. It is a lot like a Perazzi trigger.