Balancer slides in on install

I've worked on many breeds, the Toyotas are slip fit cold, spin to chip 7500rpm, no drama, can't remember the Hondas.

Something you might be overlooking is expansion rates of different metals, clearance change with temp.
Valve settings as example, steel fluid transfer tubes into cast iron, no seal.
Food for thought .
That's why engineers get the big bucks,- us mechanics get nightmares and near impossible flat rates.