other than unsafely lowering the ride height of your vehicle, there is no real benefit. youre still riding on old struts and springs. the amount you can lower the strut is dependant upon the size of tire/wheel you are using. use a smaller tire on a stock wheel, you can lower it more.
what i did do was RAISE the REAR strut in the knuckle for a while after installing the modified Moogs and Tokico struts. it raised the rear 1 inch. my only reason for this was because i was carrying close to (if not more) 1000 lbs of tools in the trunk. ive since emptied my trunk, sans spare tire, jack, tire iron, and oil, relocated the strut to its proper place in the knuckle.