I've never let Bombs stack up in storage, how large pile of them can you save up without using them? I'm at 192 Amber pieces now and wouldn't mind getting a 2nd one also, for trading. But, i'd hate if i didn't make it and would end up with loads of leftover Amber parts... So i wonder how many bombs i can save up before i actually use them in mine, maybe i can let bombs pile up and see if it's possible getting a 2nd Amber... Otherwise the bombs might give a nice headstart for future mining dragons, hmm...