I too have a G20 and love the 10mm round.
Another fine handgun I carry at times is a Colt Delta-Elite
also chambered 10mm.
The Delta-Elite being designed like a 1911 .45,
it is a very reliable pistol, never gave me any trouble.
Now, i don't own a Kimber 10mm and not educated on thier reliability
with the 10mm. But, the Delta-Elite is almost identical in design, If it's
the design you're worried about.