Thats what i've been using for some time on multiple italian machines, and i also have had my electrical issues go away. Thing is though, i have to admit that some time back I ended up defaulting to just going through the italian machine electrical the first winter I would own the machine (winter projects, not during riding season :->), which meant the roadstercycle mosfet regulator, upgrading any suspect looking wiring from stator to reg and then on to battery, removing un-needed italian butt connectors, then often also spending the $$ on the hicap cables. I used to fret over which of those changes was the most important, but ended up drinking the coolaid for "its my toy, and i want it right" to justify the expense in each case. A wise case can be made for all that being overkill and a waste of some of that money, as well as for the opposite, which is to have a well sorted machine. over time. i've had success with each of those fixes on different bikes, so i usually do them all now. The hicap cables worked wonders on my old ST4, whereas just upgrading the wiring and connectors to the VR from the stator on 3 different Gran Canyons seemed to be the real silver bullet for the issues that plagued that model. The shindengen I also do, but not as clear on whether it really was the answer based on trial & error, since that upgrade was always accompanied by another change (usually the wiring upgrade, which is certainly the cheapest of all those options).
In fact, now that i think about it, i started doing that in around 2005, and since then i have not had a single electrical issue on any of my (modified as described) bikes. knock on wood. charging is great, batteries last 7+ years and are only replaced because i figure its time and not because of any bad symptoms (though note i also use deltran batt tenders all winter, always), and no oddball "won't start" issues. Very possibly just lucky, but the miles, years, and number of italian machines so modified are adding up to what might be a relevant data set...