I just fitted Vogtland lowering springs on my car, rear was easy, front a little more difficult, but with the help of a friend we managed to get them in.
Haynes manual says to position them over one hole in the bottom of the a-arm, leaving the other hole free.
I guess we slided both springs all the way into the slot of the a-arm, covering both holes.
Would that cause any problems?

 

The only change would be rideheight. Your probably fine, just might sit a tad lower

 

Thanks.
Why position the spring between those two holes anyway, wouldn't the spring slide into the end of the "slot" over time by itself?

 

No, won't slide by itself; probably has 1800 lbs or so on it at the very least (remember, the weight of the car has more than a 2:1 mechanical advantage on it)

The factory probably did it that way for 2 reasons:

1. The hole needed to be there to allow water to drain out; and
2. It's SUPER EEEEEEZY to see if it's put together right, including on the production line, at a quick glance

I'd suggest making sure it's as right as you can get it.