URL Advice

Is this URL a recommended:::

[subway]

Does any one have any experience of how well a URL containing 3 keywords (2 of which are the same, but one is the singular version of the main keyword and the other is plural) is likely to perform in the major search engines.

For example I would like to register a domain name that goes something like:

widgets-blue-widget.com

Is this verging on problems. I would be interested if anyone else has had any success with a similar structure.

[fathom]

All other things being equal (which they never are) no extra ranking influence is gained... but no real disadvanatge either.

The only possible loss is website credibility (and maybe not being so memoriable - was that "s" on the first or third word)... but if good useful and relevant content... I doubt anyone will care.