Was wondering if anyone else had trouble finding shares to short with Think or Swim.  I was going to apply for a margin account because I love TOS's features and don't really want to switch brokers.  I also know they are merging with Scottrade which should be complete by the end of September.  I was also looking online to find the best broker and TOS kept ranking best overall which definitely justifies me staying with them.  However, I was wondering if any veteran traders had trouble finding shares and if so how they adapted

Thanks!