HEI Coil- E-core vs canister

I'm in the middle of an HEI conversion and need to buy a coil. Are there any canister coils that equal performance of an e-core coil? I've noticed pertronix makes an epoxy filled canister coil with low resistance (0.6 ohm, I believe). Would this work as well as a proper e-core type?

They are kinda close, so if that's what you want then go for it.
The E core coils put out an average of 4-5k volts more energy than the Blaster series round coils.
I seriously doubt you cold ever tell the difference.