The average 7luc 2dex build is good here, but I suggest linking in some dex and str. Pando mobs have a lot of dex and back in my archer days I kept going hit, miss, miss, hit, miss. About 250 dex is good, and the average 5 x 51 = 255 luc is good as well. (5 for 5luc per level, 51 for the level you're at).
Be sure to link str in though, my crits on Pando mobs ranged from 100 to about 1000 when my gear was linked with luc, which is a bit random. After linking about 100~ str in and getting the right ele, crits went to 500 to 1200~, much better.