I like them. I angled the rear shackle back quite a bit, causing them to be perfectly flat static. If I had to do it again, I'd move the front axle ahead at least 1", and put a leaf in like you're talking.

The problem is that the rear end is going to max out quickly without a double cardan and repositioning the rear crossmember to allow for any more droop in the rear.

So it's a toss up to put in the extra leaf up front. But I'd definately move the front axle forward a minimum of 1" from the normal pin position of the stock waggy spring.

But they do flex!

Have you seen the latest edition of the Nissan Sport Magazine? One heck of a droop picture from Left Hand Canyon/Carnage in Boulder.