Yes, if you can push air or fuel through the nipple, you are good to go.
SPI works great with pressure delivery. KK used to recommend no more than .010" if I remember correctly. I never paid much attention to it. If you are running small props like a 5 x 3, or 4.2 x 4 you need all the compression you could get, so I'm in favor of setting the liner as low as it will go. A real good engine will spin a 5 x 3 at 24,000. A mediocre engine 22,500..which was hardly enough ooomph to keep the lines tight on a windy day in the combat circle.
These engines will begin to fail soon if you run them above 24,000, so I never felt my approach left anything on the table.
Friction proofing the crankshaft and lightening the inside of the piston is where it is worth to spend time. When the piston is flying up and down 400 times per second, micro grams of weight shaved off the piston has to be a win - win for both performance and longevity.