Hi Sunnyboy,
Thanks for sharing your experience. I actually think I am settling in on the speakers toed in so that they would intersect about 2-3 feet behind my seat, similar to you.
For amplification, I am using a highly modified Rogue Cronus from Mark O'Brien at Rogue Audio. It is EL34 based and about 30 wpc in triode. I have had some much more expensive tube and SS gear in the past, but this is one of the best amps I have owned. From what I have read, the EL34 tube is a great match with Quads. I also have an EL84 based Scott 222c from Mapleshade, but have not yet tried it with the Quads.
What amp are you using?
Dave