The MSD 6AL is an igniter unit, but our stock honda ECU output not strong enough to drive the igniter without the OEM igniter. (igniterception) Dunno about FCON Vpro, that one you have to research yourself. Beware though, it seems if you can burn the ignition driver if you pull to much amperage from it with the MSD.
If you have an installer/tuner familiar with MSD ignition, go for it, if not, I think better not.
Note: googled just now, apparently MSD does have a 'programmable' 6AL out now, with adjustable ignition timing curves, so I was wrong earlier. Technology move so fast.. lol
RPM sudden jump until redline is not that worrisome, It just means your igniter is putting out that much pulses, not that your car suddenly 8-9K rpm from 4-5K rpm. Remember that honda RPM output is igniter based. All electronic, not mechanical like last time where 7K rpm = real 7K rpm
Anyhow, you're sure the FCON Vpro tune for your turbo all okay? I find it hard to believe the stock ignition cannot take boost at all. Last few months saw a D series running AR.52 turbo. All stock ignition. Making 280+hp. Also using second hand old ignition.
How about plug gaps. Maybe your plug gaps too wide? What plugs are you running?
---------- Post added at 08:15 PM ---------- 6 hour anti-bump limit - Previous post was at 08:08 PM ----------
so, based on your comment, you already replaced the cap coil and wires?
My own car, long time ago, had a misfiring problem after vtec rpm, even went to the trouble of changing distributor to test, still there. Turns out it was the cables. lol. New cables problem solved, but I didn't get the erratic rpm bounce like yours, of course, got a bit but within the range of 500rpm, not 1000+rpm, which is why I suspect the igniter.