You guessed it. I looking for info on a 4x38mm clustered to single 38/54mm version of the Herc. Several years ago I found a thread started by someone building to that scale that really looked like 1st class craftsmanship. I don't remember whether it was YORF, here, or elsewhere. Unfortunately that thread got basically hijacked and the OP kind of gave up on it. I can't even find remnants of the original, so I'm pasting around looking for another source of knowledge. The video you referred me to of his launch had the most realistic staging delay I've seen.
I will add that a project of this scope is well beyond my current skillset, but before anything else slips into the internet void, I'd like to collect a body of knowledge around that particular missile (notice I didn't say rocket. Nothing made the instructors more mad than referring it to as a rocket). I've been all over Wedge Oldham's site, and there’s tons of great info there, but the scale is way beyond my means.
Thanks again MaxQ!