The only choice is to tighten the screws on them with 100% CLEAR limitations, else they will definitely take advantage. Please share any observations you have made.
Quote from Option Trader:
Headlines: "Most stocks down after shorting ban ends
Fannie, brokers fall on day SEC's short-selling rule expires"
http://www.marketwatch.com/news/sto...ECDD9-2D66-4BC9-BC07-49AF9301D432}&dist=msr_2