alignment ?

Very few alignment shops will fool with lowered cars. The only thing I've found you can do is to buy the alignment tools and do your own. The tools aren't expensive and the process isn't difficult. (there was an article in one of the "custom rod" magazines quite awhile ago on this topic. I'll find it and fill you in on the info in it prior to the end of this weekend- if you want it) This way, if you have a certain height and or position that you do a majority of your driving in, you can get the car there and set everything to be as straight as possible at that point. With hydraulics, you'll have to figure out some kind of simple reference point / system in order to find that desired ride height / position each time, but through trial and error, you'll beable to do it. But like the guy in the last reply said, it all has to do with whether you're bouncing around alot or just using the hydraulics to change the stance of the car periodically. I use mine (hydraulics) to drop the hell out of the car when the streets allow it and I am able to keep my Michelin tires in relatively good shape. It just takes alittle time and effort. But to me, having my car "JUICED" is worth any and all the time and effort it takes. I see that you mentioned "air bags" and I know that alot of guys have gone to them over the years, but for me (to each his own), the old-fashioned hydraulics are the coolest. To me, they are still just as cool today as they were 30 plus years ago when I saw my first real "Lowrider." Good Luck!