John, I believe that you can turn the sticky keys on in a configuration file to have it stay that way. I may be wrong, but look into it.
As a developer with a design background, I find Enso to be invaluable. I downloaded the free trial, and when it ran out, I lasted only one day before getting so fed up with it no longer being available before buying it.
Take a bit of time to remove some of the automatically assigned commands. Possibly even remove some that are named in too verbose a manner such as Microsoft Office Word 2003, and re-learn them as a shorter command such as Word. This helps Enso behave more predictably when auto-completing command names. (I wish control panel and system actions could be unlearned)