OK.
My experience is about 1,500 tw hours in Cubs, 140, 170, a couple Citabrias I owned, Cessna AG Trucks and Ag Huskies I ferried, and an Experimental homebuilt biplane I ferried from AZ to TN.
Each is slightly different. But in the Cub and Citabrias, I found the most secure landings were ones where the tailwheel rolled on slightly first, then the mains dropped maybe 6" as the stick came back all the way. If all three touched down simultaneously, I found the plane more "skittery" for a few seconds, since it still had a tiny bit of lift left.
In a Citabria from the back seat, I had to look to one side or the other. But since I was taught that in nose wheels as well, it was an easy adjustment. As stated in other threads, maybe generally looking towards the runway edge, with the main wheel in my peripheral view, scanning but concentrating maybe 50' or so in front of the plane. All things being equal, I would look right, having spent more time in the right seat of side-by-sides. I might offset a foot or two to the left of the centerline - right over it and it could disappear entirely. I really could accurately judge my height, so it is possible.
What Henning said about looking "through" the panel and using peripheral vision obviously works for him. But in general, peripheral vision is great for detecting motion, not so great for detail. I obviously utilize it, but would never just stare at or through my student's back solely relying on peripheral vision. I do, in fact, turn my head and look at an angle. NOT subconsciously pulling the plane in that direction, as you might do in Henning's "wire" example, is a learned skill.
But whatever works.
Not a dig, but if you feel blind and at God's mercy during any part of a tailwheel landing, to paraphrase Steve Jobs, "You're doing it wrong!"
My CFI is expired, but if you ever make it to Copperhill, TN, we can play!