utf8 + Loader generated/updated schema

I really like Loader but there are things that are impossible (I  
think) to do with it; specifically, using the UTF8Columns component  
(since it's per column).
I found a nice article, in Japanese, on how to make your model base  
handle utf8 (in what I believe is the same fashion UTF8Columns does)  
transparently for any given column based on TYPE. In this case, TEXT,  
CHAR, and VARCHAR.
 http://www.asp-edita.jp/doda/one/doda7807_8.html

I'm thinking about adapting this for something. So, I'm asking here  
first. Does it look like a best practice or a dangerous hack that  
will come back to bite? Is there a better approach?
Thanks!
-Ashley