Question on msd digital E-curve pro billet distributor

I was looking at that but the programmable 6AL-2 box looks like a better choice. You can tailor your advance curves just like the e-curve, but you get the benefits of the high power igintion box. The price is about the same, actually the box is cheaper, you just need to lock your current distribtor to let the box do all the work.

http://www.summitracing.com/parts/msd-6530