staggered wheels

[oasis]

It has been a year and a half since I lost my 1302 in a fire. It dawned on me the other day as I was looking through some old notes and books currently stored in an off-site storage facility I asked a lot questions that were all over the place until I bought my 1302. Oddly, most questions then focused on a 1303 until I made my purchase. Nevertheless, many questions have popped into my head as I try to do some conceptualizing and I need to once again rely on everyone here who has the experience I lack.

The first questions for my second project have to do with staggered wheels. I know some stock Porsche's have wider wheels on the rear than on the front.

(1) Is there an advantage to staggered wheels if applied to a 1303? Would there be disadvantages?

(2) Is there a formula for staggered wheels? It doesn't have to be a genuine mathematical equation ot anything but is it better to be one-inch wider on the rear? One and a half? Two inches?

(3) Is there a point of no return on the advantages of wider wheels? Is an 8/9½ better than a 6½/7½, for example?

(4) Since wider wheels may mean wider fenders (wings), are there advantages and/or disadvantages to going wider there as well? I have seen some wider fenders that require a second look to even notice they are wider, and I have seen some that almost border as an extreme measure. I'd prefer not going the extreme route but if that route would be better, then so be it?

I'll ask other questions in other threads in their appropriate forums. Thanks in advance.