I know this thread hasn't been seen in about 7 years, but I'm leaning toward the Cortech Super 2.0 12-Liter bag.
https://www.revzilla.com/motorcycle/cortech-super-20-12-liter-magnetic-tank-bag?utm_source=bing&utm_medium=cse&utm_campaign=PLA-Cortech-Products&utm_id=bing_73550916_4818538202_16479914788_pla-1100507305507_c&utm_term=1100507305507&msclkid=a0a63051c2d712063d9450446e2d1062&sku_id=839429
I had one of those and really liked it but it faded pretty quickly to a purplish color .
Just came in the other day and it rocks so far. Cortech Super 2.0 18L Magnetic. Fits right over the useless glove box and sticks to the tank. Doesn't slide around and comes off easy when you need to fill up.
On longer road trips I have a Chase Harper tank bag mounted on my '08.
https://www.amazon.com/gp/product/B000GRR4OC/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&th=1
What I like about the '08 is the small tank compartment storing hand sanitizer and a microfiber towel. Then on longer trips I'll use the tank bag and carry snacks, camera, portable battery pack and more.
I'd be afraid the sanitizer would combust from the heat in the tank compartment.
I have a large Chase Harper for big trips. Occasionally I find that the ABS is turned off after I have had the bars locked. No big deal as it is easy to push the button and turn it on after seeing the light not turn off. Just saying