Important to point out that the F7 variant of 9913 has no air dielectric which got the original 9913 into trouble. Also LMR cables use aluminum foil shield covered with wire braid shield. If exposed to water the aluminum corrodes and gets quite lossy. So wx sealing is still necessary (two wraps of good electrical tape at minimum). Good electrical tape = Scotch 33+
I also seal with heat shrink tubing but often cover that with electrical tape.
LMR-400 is generally good to 432. It is not anymore flexible than Belden 9913. For better flex consider LMR-400UF (ultra-flex). Slightly higher loss but better to go around az-el joints.
For long runs at 432-MHz one should consider LDF4-50 Heliax hardline (1/2-inch) or lLDF5-50 up to LDF7-50. Loss is higher at 1268. I have 15-foot run of LDF4-50 from my tower-mounted DEMI 144/1268 Tx converter. That gets the most power to the antenna and only needs 12vdc, PTT, and 144-MHz coax to input.
Some archive photos: http://www.kl7uw.com/sat.htm Drawing shows current satellite antenna installation.
73, Ed - KL7uW
For 2 & 70cm I use LMR400. LMR is better (in my opinion), in that it's more flexable, 9913 can get water inside. Unless coax connectors are super sealed. 73 Bob W7LRD