I could also mount them from under the seat but they would take more effort to remove so I'll leave them mounted high for now. The tank rack allows my magnetic tank bag to stay put as the tank side shelter panels are fiber glass. Can't say I really love the rack on the tank but it is functional and will allow any of my tank bags to sit on top.
The fuel gauge and temperature gauge were intermittantly functioning so I cleaned all connections and got them to work ....for a while. After some research I found that the gauges run off of a 7 volt regulator which is often prone to failure. When it malfunctions, both gauges will quit working. Gauges showing a "pegged out" reading relates to a full 12 volts getting to the gauges, 12 volts reaching the gauges will eventually cook them......a "bottomed out" reading means an open circut. Mine were "bottoming out" so must have had an (sometimes) open circut.
I priced used 7 volt regulators on EBay for $25.00 + shipping...Honda wanted over $100.00 + for theirs. I found another unit being built by an electronic savvy Goldwing rider for $35.00. Installed the new one and the gauges immediately began working as they should.