Plastigauge and bearings

[pdiggitydogg]

If Im replacing piston rings, I should hone the cylinders. If I hone the cylinders I might as well replace the bearings. Why not?
The problem is I just dont understand how this works!

This is what I can figure out:
Follow the numbers on the engine to figure out what bearing colors I already have and try the same colored strip of plastigauge following http://www.c-speedracing.com/howto/b...s/bearings.php (does it come in different colors?)

I just use the old bearings for testing? If they fail I replace with the same colored ones? What if that fails?
I thought those bolts should only be torqued once?

Wouldnt this be easier with micrometers and gauges? Too bad they cost so much...

(The same applies for aftermarket rods and stock?)