Replacing the Trap Sense/Trap-Finding Ability for Rogues

[The Amazing Dingo]

I have a fighter/dervish planning on eventually taking a few levels in Rogue. However, my problem is that she is in not the trapfinding type of rogue. The SA and dodge/evasion abilities are understandable to her character (since she has a high dex and is a mobility based fighter, as can be seen from the Dervish) but I'm having problems with the trap abilities.

My question is, what would be a decent abilty to replace the Trap Sense and Trap Finding abilities with? I don't think she'll be taking more then probably 4 or 5 levels of Rogue, so I don't really need anything long term, but just something early on? I'd be tempt to allow an extra feat but an extra feat that early in the class might be a little unbalancing. I'm just wondering if anyone else might have an idea for a fighter/dervish?

Thanks

 

[aurance]

Allow the trap sense bonus to be used on any 1 saving throw, instantaneously, once per day.

If that's not powerful enough you can play a bit with the number of times per day.

 

[Plane Sailing]

Trapfinding is a liability, not an asset! Ask any rogue

You ought to be giving something up to *not* have trapfinding when you multiclass into rogue...