< That's how I did that, Curve>sweep (circle)>Array>Boolean but if I tried to Boolean all the Array at once MoI would fail, then found that it could Boolean 3 or 4 of the arrayed sweeps at a time.
Is that what you mean ?

No :)
More than like that (here an "helix": Array Circular with vertical step, Array Dir)
Boolean>Array>Array etc...
So just one boolean inside the first component ;)
The only difficulty is find the first component ;)
After it's very speedy and no problem of boolean!