Great conversation. Thanks. I think a really good point is how toe-in in a given room and based on one’s one preference can significantly deviate from a manufacturers recommendation. If I recall SF Amati are recommended to be toed in direct at the listing position. For me, while this does create greater imaging, the sound stage decreases significantly, and the vocals become too defined in space, and treble a bit strident (despite having Mc equipment and a tube pre).
My starting point is probably having the tweeters shoot past my shoulders, then ¼-½ adjustment out seems to be a good spot for now. Maintain a decent imaging, but the soundstage just opens up and envelopes the room.
Truly for me, the change is more profound than switching up cables, and depending on the price point could rival the change of a DAC. At one point I was feeling my DAC was too sharp and went through an odyssey of different DACs. I wish I had understood then, that the first thing I should have done was to adjust the toe-in.
Lesson learned!