Thanks Jack, I went ahead and put together a write up with pictures and emailed it to Bill for him to proof read and post. I concur with Bill regarding the purpose of the holes in the bottom of the stock intake tube being there for water elimination.
The nice thing about the DWV intake mod and its variations is that it preserves the noise canceling abilities of the factory intake which is a CAI even in stock form. It just needs the restriction removed.
EDIT to add: See post #71 in this thread for instructions to make the DWV intake mod.