I just started to use this and found the 3dmouse move opposite than expected. On a hunch I edited the config.json file and reversed the scale so that anything negative was positive and visa versa. Now it works great!
"profiles" : {
"spacemouse" : {
"axes" : [
{ "offset": 0.0, "scale": 0.1, "threshold": 0.01, "target": "movx" },
{ "offset": 0.0, "scale": 100.0, "threshold": 1.0, "target": "zoom" },
{ "offset": 0.0, "scale": 0.1, "threshold": 0.01, "target": "movy" },
{ "offset": 0.0, "scale": 0.05 , "threshold": 0.01, "target": "rotpitch" },
{ "offset": 0.0, "scale": 0.05, "threshold": 0.01, "target": "rotroll" },
{ "offset": 0.0, "scale": -0.1, "threshold": 0.01, "target": "rotyaw" }