It looks like only crimp connectors are widely available for flexible double-shielded coax cable like RG400.
There is also wide availability of solder connectors for semi-rigid cable like RG402 (but it's single-shielded).
I personally like soldered connections, but is it even possible to have soldered SMA properly working on flexible cable like RG400? It is clear that I cannot simply use RG402 connector with RG400 cable due to diameter mismatch.
Is there any double-shielded semi-rigid coax cables compatible with RG402 soldered connectors?