This location is the one that I have used on 4 bikes now. 2 x ST1100s and 2 x 1300s. This is the first 1300.
Getting the location as high as possible, without getting into my line of sight - particularly when going over the brow of a very steep hill (we have a lot of those in these parts) - is important for me. Tucking them to one side does thrre things.
1. Keeps the Satnav sheltered - this is a Zumo 590/595 cradle.
2. Is easy to take a quick glance with much less of a glance than is required for checking mirrors.
3. Allows my pillion to see ETA for next stop / final destination.
I should have used Japanned bolts - these are a little rusty.
The mount itself is a sandwich of Aluminium sheet, Old car inner tube, fairing plastic, old car inner tube, ram ball mount. Drilled through and fastened with 2 x 5mm bolts with nyloc nuts. Finding a place that doesn't interfere with the sliding screen mechanism underneath and with the windscreen going up and down is crucial. So plenty of trial and error before fitting.
The downside is that you have to drill holes in the grey nose cowl. That doesn't bother me in the least. I tend to keep my bikes for what I want to use them for with little regard tot he resale value. In any case, havinging a RAM ball mount ready to use is a bonus.
The type of mount offered originally (I think) by Migsel, and
a smiliar verison offered by Bikequip - seemed to be an attractive proposition. But I sat on a bike with one which made me realise that having it mounted dead centre was not what I wanted. I daresay that mounted in one of the side holes on a long arm to one side would put the satnav in more or less the same position as mine
I have tried the clutch lever / brake lever adapter which uses longer screws to piggy back the lever clamp. THat is a good, quick solution, which I used until I had the chance to take the headlight cowl off. I have two mounts at present - the one like the photos above, and one RAM ball, screwed into the hole inthe centre of the Bike Quip bar riser centre piece. I put the XT on the top mount, and sometimes, when testing, I'll have the 590 or 595 between the bars. I don't like it in that position. It takes far too much time to look down, refocus, read the information, look up and refocus again.