When I moved down to the coast 20+ years ago, I told myself over and over again that I was going to just fly fish. Every time I went out I'd take my fly rod and a conventional rod. I'd always start with fly gear but invariably, the wind, the current, not enough light to see, insert whatever excuse here, and I'd put it down and pick up my conventional rig. Sure I caught lots of fish over the years, but I didn't get any better at fly fishing in the salt from a boat. About 4 years ago, I put the conventional down and made a conscious decision to only fly fish no matter the conditions I was out fishing in. Consequently, I am comfortable fly fishing in just about any condition or situation that I would consider fly fishing in. I will occasionally go out conventional fishing with non-fly fishing friends and sometimes my kids, although they both fly fish too, but I'm 99% fly fishing only.