I had to throw in with a "yes" because "yes & no" wasn't an option. Bass fishing When it comes to crankbaits, most of the time yes, it has to run dead straight and get down to where it needs to be and cause either contact with or deflection off of structure. There are times when paralleling steep bluff or drop off's that it really pays to throw a little bend in the tuning to get it to run into the structure. Same goes for a buzzbait, add a slight bend to one side or the other to get it to run towards an edge, or if you build your own and want to get tricky, clockwise and counter clockwise rotation blades help you to really make them go places. Jerkbaits, If they don't pull straight, I don't want them. Spinnerbaits that won't run upright at reasonable retrieve speeds drive me absolutely insane. Salmon/trout/steelhead If a plug will not run down dead straight and cannot be tuned to do so, it is nothing more than a Christmas tree ornament