Billy, I can only humbly admit my sins and digresions, but sometimes lessons have to be heard the hard way...
Ended up with two open-backed Sound City 4 x 12 columns, used for the bigger gigs and now long dead, and the Marshall slope (still mine) was used for the smaller ones...
The ampeg just looked beautiful...
... but the Hiwatt just did not match it and just looked wierd being so much wider...