If you plan on a lot of sporty night riding in rural areas with no street lighting you should get a better headlight or add driving lights. Hitting a deer can kill you, hitting a cow or moose probably will kill you, hitting a groundhog, skunk, possum... not so bad but still exciting (in a bad way). (and, stupid fact, moose eyes do not reflect any light... deer eyes and most small animals yes so maybe you can see them waiting to jump out in your way)
Check the aiming of your headlight and then try it out on a dark road, if it's OK for you then why change it? For city only riding, it just doesn't matter as long as it lights up.
In the 70s I don't think there were ever any special sealed beam headlights for these motorcycles in the USA, we either went to a dealer and bought the OEM Stanley or picked up a replacement car headlight at Pep Boys then made it fit.
A lot of riders put in European H4 headlights which were A LOT better than the sealed beams. No idea if there were European specs for bike lights different than for car lights, but these all had a brighter right side low beam pattern rise than Stanley or USA sealed beams. And one could carry a spare H4 bulb for when the damned thing burned out at the worst time... not so easy with sealed beams (still true).
