I have hand stitched, used the "Awl for All", and for the last 6 or 7 years I've used Artisan sewing machines. The machines are by far my preference. Prices on Stitchers and flat bed machines have dropped dramatically since I bought my two machines. If you have any thing like a decent order back log the machines will pay for themselves very quickly. They will allow you to step up your production, and give you the ability to do more intricate inlay work without the tedious hand stitching.
Paul