Harry has a different setup with his hat centered more, so he is already sitting more centered to his kit, making it easier for him to reach the second floor tom. In my pic I will be turned slightly towards my hat and away from my floors. My first floor position tom is heavily used. It is a 15" and easily reached without twisting. My second floor position tom is not so easy to get at while on the hat. I usually use my left hand, under my right arm for this drum in many fills. If I am riding, or doing tom work then it is not as much a twist, but still out of the comfort zone. My last tom mounted up on two mounts, like a gong drum, is definitely only reached at the end of big fills, or during heavy floor work. This one is defiantly out of the comfort zone.
The 10,12,13, up front, and the 15 to my right are all in my happy Zone. Easily reached without any twisting. These are my main toms I use. Hopes this helps.
That is virtually identical to my setup, and I also use Zildjian A Custom cymbals, although I didn't have them all at the time of this pic. It also doesn't show my doouble bas pedal setup either.I've been playing double floor toms, a 14" and 16", for many years and never felt uncomfortable doing it. I'm 59 years old and still able to move from side to side on a kit without any problems. This may not hold true when I'm 60, lol. A lot has to do with the positioning and set-up of your drums and this depends on the size and amount of drums on your kit. As you can see, my 16" floor tom is always a bit forward from being exactly to my right. I have to turn very little to reach my 16" tom when playing it with both hands and I don't have to move a bit when playing accents or one handed rolls.
This is the way I set up my kits. Sometimes I might not use all the rack toms, but I usually do put both floor toms to use.