vr versus hall effect

[pstrbrc]

I'm putting together an FI system for my '81 GPz 1100, and I'm planning to use MSnS so I can control spark. The stock ignition is a wasted spark, two coil setup. So I'm looking at the wheel decoder setup, using an existing v2.2 MS1 that I have laying around, and a couple vb921 driver chips. THe first big question I have is about what pickup signal format to use. clearly, the bike already uses pickup coils (VR) for its existing ignition, but I will have to round up a missing tooth wheel anyway, so switching to an off the shelf Hall Effect pickup isn't all that big of a deal. But if I use my v2.2 board with a VR pickup, I have to build an extra vr sensor converter board to turn the analog signal into digital form. Now, it makes sense to me to build a system around a Hall Effect sensor. What's the consensus on this?