for panic farming bossk is the conventional wisdom that it's better to spend crystals on energy refreshes to farm all the tier 7 nodes that might drop a shard or buy shards directly in shipments? Chiefly with regards to energy refreshes after the first 3.
By my calculations the first 3 refreshes (150 energy) get you 360 energy total. Which is only enough for 2.25 nodes. Obviously that's good use of crystals since that's basically your dailies + a little from arena payout. Another 3 refreshes are (I think) 300 crystals, which is 40 shy of the base shipment amount (340 for 4 shards). At that point I'm very fuzzy on whether energy refreshes are worth it if all you want from the node are bossk shards.
I'm of mixed feelings myself since I've had past tries where I did all 8 sims on Bossk's normal node and didn't get a single shard. I'd hate for speculation that Bossk will be unofficially required to be right and then miss out on 7* Chewie because I spent crystals trying to get shards in an inefficient way that left me a few short of 7* bossk.
Gearing the 5 BH I already have 7* up to g10/11 should be doable without crystals, getting Bossk to 7* won't be.
