I'm starting on a search for a good set of towing mirrors for my 08 2500 SLT. The mirrors it came with are the standard fold in mirrors. After hooking up to a 5th wheel a couple of times, I've realized how beneficial extending mirrors would be. The towing thing is very new to me, and I'm looking for some suggestions for a good set of towing mirrors. From what I've seen, there are slip over stock mirrors, manual replacement mirrors, and power replacement mirrors. I see Genos has CIPA mirrors. Are they a good option? What other good options are out there?