Maintenance for the week of October 7:
• PC/Mac: No maintenance – October 7
• Xbox: EU megaserver for maintenance – October 9, 2:00 UTC (October 8, 10:00PM EDT) - 16:00 UTC (12:00PM EDT)
You will find that many weapon skill line passives only apply to the skill line they appear in. There are very few exceptions to this. (ie resto staff low HP critheals is an example of just equipping it will also boost healing skills outside the weapon line)