Hi Dean,
>> Would it not be quicker to just DDEDIT the dim?<<
Absolutely Dean, IF it worked, but it DON'T. Test it yourself. Draw a bogus dimension, edit it to add text, intentionnally misspell something, then do a spell check on it and it will return the "Spelling check complete" dialog box having never corrected your misspelled word. Now explode that same dimension and again perform the spell check on it and see it offer a number of corrections as you would expect.
I believe most people try that first and when they find it don't work, they look for other ways.
By the way Dean, I am doing my testing in 2002. Newer versions may be able to accomplish this, but of course, I can't say.