Redirect 301 from “blue widgets.html” to “blue-widgets.html

[Dewaargh]

Here is my dilemma.
I have a bunch of new sites. Some days ago I read a pack of WebmasterWorld topics concerning advantages and disadvantages of dashes and underlines in page file name. The situation is: I have underlines as separators in all my pages with my keywords (like blue_widgets.html).
I made a little test because there are a lot of different opinions concerning dashes and underlines. My site typical page file name is like blue_widgets.html. I made two searches in Google. First I looked for blue-widgets. I had my page among a lot of other competitors in serp. Next time I searched for blue_widgets. Only my page was found. So the advantage of dashes seems to be obvious for me.
The decision as I think is to create copies of all my pages with file names “blue-widgets”; “orange-widgets” and make redirect 301 to them from pages “blue_widgets”, “orange_widgets” etc.
What do you think about this idea? Is it worth it? Or may be you have any other suggestions concerning the problem. Thank you for your help.

[texasville]

Keep in mind that when you do that search, it is almost like searching with " "...so you actually got what you were looking for. That really doesn't produce an advantage as ..how many people search using _ or -? Almost none. It's the on page topic that counts. How you name the url doesn't really matter and I think you are just flirting with problems.

[Dewaargh]

I just want to know does the advantage of renaming page file name from underline to dash bring more benefit comparing with what I lose when make redirect 301 from underline to dash.

[vikram lashkari]

hi Dewaargh,
What i feel is yes , you may get additional benefit from your ULR with "-" insteasd of "_". But i am not sure how much advantage in terms of coming up in SERP's

thanks
vikram

[idolw]

it does not matter that much. better get one more link instead of spending time on redirects.

[Quadrille]

The serps advantage of changing will be less than the disadvantages - not to mention your time and trouble.

Whenever you add a NEW page, use blue-widgets; and whenever you reorganize for good reason, change to blue-widgets.

But it's really not useful to change just for that one minute issue.

[Dewaargh]

Thank you all for your help. I think I'll follow the last advice.