LMR195 is pretty stiff. A cable of the same size but of a more flexible construction would serve you well.
A fine stranded RG58 with a PVC jacket and foam dielectric would be just the ticket.
Used a bunch of Belden 8219 back in the day for its handling qualities. Davis RF & Wireman used to have a nice version of this with low loss dielectric and foil shielding, but it seems to be discontinued. There are some plenum cables floating around with similar construction.
Something to consider is that SMA connectors are very limited in mate/demate cycle life. If the scanner doesn't do anything else, then no problem, but if you're swapping antennas around I would recommend getting one of the low-profile SMA to BNC adapters to put on the radio semi-permanently and then use BNC connectors to connect to the radio. If you're changing the jumper this would be the time to make that change.
Depending on what frequencies you are receiving that SO239 connector can be pretty lossy, and multiple adapters is generally a bad idea. Would be better to just have a jumper with a female BNC on the antenna end.