I don't think many of you fish venues where you get fish feeding, then one bumps into your line and all that's left is a cloud of dust, for the entire session with none returning, two rods increase the odds of this happening, whereas one well placed single rod gives you that opportunity of success, also on most barbel rivers a sleeper rod doesn't give you a chance of fish after fish, as you are generally fishing for one or two fish at best, only certain rivers give you the chance of multiple captures, I'm fortunate to be able to fish one, but a one rod limit is in place, the Trent,Wye,Ribble and Severn too give this opportunity, things unfortunately will change as cycles roll round...also when you intend to fish two rods you tend to have to fish them In certain positions to avoid risk of tangling not putting them both into the most likely spots to get bites...