I considered one of these shifters but the goldwing I sat on that had one really restricted the fore and aft movement of my boot.
Kind of pinned between the shifter pads- seemed dangerous- might hook your boot if you have to get off the bike in a hurry.
Does this particular shifter give you plenty of movement room for your boot?
Perhaps the one I tried was shorter than this one..
I might try the Kuryakyn peg lowering kit with the adjustment for 2 inches down and a little forward so I can get the toe of my boot under the shifter for upshifts.
Somewhere I saw a YouTube demo of installing the kuryakyn heel toe shifter. They mentioned the difficulity of reaching the kickstand with the running board. There is a kickstand extension for the wing. I too have big feet. Cannot build a worthy house on a small foundation.
I certainly wouldn't want to put one of these on my bike, but to each his own. In the past any bike I owned that came with a heel and toe shifter I took the damn thing off.