How many spacers depends on a few variables; tolerance in the BB spec, tolerance in the aluminium spacers, type of BB being used, bearing shields used.
As above, if you can answer yes to these questions
it's silent
there's no lateral slop
everything is torqued to spec, including the lock-ring on the spider
it's fine.
My Habit runs one spacer and any more it will bind. It's silent and fine.
My F-Si runs three spacers and the wavy is hardly compressed. It's silent and fine.
How many spacers depends on a few variables; tolerance in the BB spec, tolerance in the aluminium spacers, type of BB being used, bearing shields used.
As above, if you can answer yes to these questions
it's fine.
My Habit runs one spacer and any more it will bind. It's silent and fine.
My F-Si runs three spacers and the wavy is hardly compressed. It's silent and fine.