Advice: Sequential distributor?

[Nvrenuf]

So I am in the middle of yanking my Accel Gen VI DFI. Replacing it with FAST. Hadn't really thought about it,but I'm at that point that I should decide. Should I go with a FAST sequential distributor for $350 or whatever? Or should I just "lock up" my MSD distributor and save the cash? (i'm turbo'd and doing this to be able to retard timing under boost) From what I understand, sequential really just gives me a lil better efficiency up to about 1500 RPM. Any thoughts or suggestions? Thanks!