I'd suggest giving it a little more break-in time, and monitor the oil consumption carefully. You might need to re-jet the carburetor a bit leaner, or install a power piston spring of a little lighter tension, to prevent the mixture from going full rich with a slight amount of load on the engine.
Rings rotate around the piston all the time, so the idea of the gaps aligning and causing oil consumption is a myth. They do align occasionally, but they don't stay that way long. If you're using a rail and expander type of oil ring, it's almost impossible to get the rail gaps lined up, unless the scraper rails were deliberately installed that way. Even then, both the compression ring and middle ring gaps would have to line up, and the gap would be a matter of only a few thousandths on a warmed-up engine.
If the smoke is still there at the 2500-mile mark, or oil consumption increases noticeably, a teardown might be in order.
Jerry
