Holley Sniper vs. Edelbrock Pro-Flo 4

AndyF said

It is a full Holley Hyperspark ignition system. Hyperspark distributor, coil and ignition box. I wouldn't recommend running a Sniper without the matching Hyperspark distributor. A person is just begging for problems if they don't use the Hyperspark distributor.
Here is a picture of the coil bracket I made to hang the coil on the end of the cylinder head. Using a bracket like this keeps things nice and tidy. The alternator will hang off the bottom of the coil bracket.

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I watched the video from Holly on the Hyperspark system, and am impressed. Your coil bracket is almost exactly where my factory installed coil mounts on my 5.9 Magnum. Very clean looking.

HyperSpark Ignition - Holley

If I step up to the more tuneable Holley Multiport systems using one of the Holley Terminator, HP or Dominator systems, it looks like I would use their Dual-Sync distributor and possibly even upgrade to a COP ignition, correct?

Their Dual-Sync system says it can supply a crank-trigger signal, but is that something you would use OR would you install an actual crank trigger set-up to eliminate the possible/potential inaccuracies of a distributor derived crank trigger signal. Does the potential minor variation between the two sources even amount to any discernible difference in signal accuracy?

The reason I ask is because my A/C compressor is mounted below my alternator right where a crank trigger set-up would go, so without your fabrication/machining skills I have been kind of stuck at this junction.