It'll take me a while to get LGS (if ever). I'm still new enough that I have not raided to any extent beyond solo/short manning things like Tempest Spine, Chronosphere and ADQ. For Legendary Shroud I'll need to do some research so that I'm not totally lost and look for groups.
So for now at least the 5% is better than nothing for me. Its true on how long it takes on sentient weapons though. I do have three slots available on it so I'm using those right now for Coalesced Magic set.