Then I guess no video from me. Anyways, I never use IMAWALL. It's a bad habit, especially considering you can destroy the statues with ENDISWALL. Still, I think you're right that it makes marginal difference and is, by extension, not necessary.
We made an expansion and it is awesome. Really, you should check it out, especially if you're looking for some extra challenge.
Download over at ddmod.weebly.com!