If the fish are weak (limp-folders), I like to widen my raising rang- especially in late position +sb and bb. If they are limp-callers I value raise more, bluff less.

Some fish like to limp premium hands too. Especially if we isolate too much someone will try to trap us. Punishing limpers is very good when we have a lot of equity or FE, but when they have caught on we can not assume a lot of FE anymore.