Hmm, I used it for the first time yesterday and thought that it could only be applied under the WG precleaner OR AIO. I used the AIO.......... I would think that for optimum durability a glaze would not be wise.
I've used WG over AIO and it certainly provided a very warm look, I would suggest going with multiple coats of WG, and see what you think. You could always top at a later date if necessary.
( I topped with Signature after two coats of WG and didn't see much improvement )