Eric
Some of the oldest Fisher caps of the late '50's were really not much more than your hand made caps. They look like foil and paper hand rolled and dipped in some kind of epoxy. Loose tolerances of 10%.
The later Fisher's used machine made Vishay caps from West Germany and they are MUCH better.
Even the better Fishers of the same time frame like 400cx preamp (x202) used bigger beefier caps.
So bigger beefier albeit more expensive caps has been known for a long time.
Some of the oldest Fisher caps of the late '50's were really not much more than your hand made caps. They look like foil and paper hand rolled and dipped in some kind of epoxy. Loose tolerances of 10%.
The later Fisher's used machine made Vishay caps from West Germany and they are MUCH better.
Even the better Fishers of the same time frame like 400cx preamp (x202) used bigger beefier caps.
So bigger beefier albeit more expensive caps has been known for a long time.