Surprised they didn't want to bore the cylinder.
There is a type of hone that will get the cylinder true again, don't remember exactly what it is, but it serves the same purpose as boring, but only when a few thousandths are needed to be removed. JMech will know what I'm talking about. Or maybe Alvy called it a BA (bad ass?) hone. Not sure the correct name.
You might ask them how they are honing. Generally, that does not true the cylinder, just renews the cross hatch pattern. Unless they use the special hone that does true the cylinder.
Did they tell you to get the .010 over piston and rings? Or had you already purchased them? Did they decide to just hone because you gave them the piston and rings before they mic'd the cylinder? So are they just trying to accommodate your new piston rather than boring it .020 like it really should be? You should ask.
Not trying to nitpick, but these are a few questions you should ask to be sure you'll get a good result.
If they put a new piston in an egg-shaped cylinder because they didn't bore when they should have (perhaps because you gave them the piston and rings to use) then you'll have a short lived engine. Perhaps measured in dozens of hours rather than hundreds of hours.
Lots of us have been through these situations and learned from our mistakes, just trying to help you avoid some of these pitfalls.
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