I spent around two hours doing the shard hunting funfest mission, trying to figure out the best place to do it. Castelia and the surrounding areas seems to work fairly well, netting me between 10-20 shards each time I replay the mission. The other place I found that worked well was Route 12, through Lacunosa, down Route 13, through Undella and ending in Route 14, and that normally gave me 10-15 shards. For some reason I've ended up with almost forty more Red Shards than the other colors. My current shard totals are:
I'll probably do some more later on this evening.
[21:32] <@Kaphotics> Found trash bytes from evo chain Roggenrola, Gigalithe.
[21:32] <@Kaphotics> >>Found trash bytes from Gigalithe.
[21:32] <@Kaphotics> wut