If "I" was going I wouldn't waste any time with a bait caster as it is a bad idea.... You know how to work a spin-reel-rod setup so just stick with that. Unless you want to drive there for practice lessons OR you only have small spin rods.
And contrary to what the "bait caster" crowd think's it is not better or faster than a spin-rod if the person knows how to use it. There is no real difference between the 2 and I use a spinning reel and out fish the bait-casters quite often. But you will want a longer rod and to avoid the small ones.
I do agree that there are many spinning reel fisherman who outfish "bait casting crowd" as it is the level of fishing proficiency, not tackle used, that determines who catch more fish. If I had to bet my money between an experiened fisherman using cheap rod and reel and a novice using the most expensive tackle money can buy, my money is always on the experienced guy. As someone once said, 10% of fisherman catch 90% of the fish in the river.
That being said, I think we also need to think what is the more effective and efficient way to float fish here in BC.
Basically, in float fishing, the rod and reel needs to keep the float vertical to present a natural drift and the line straight from tip of rod to float so that hook set can be done effectively. It sounds easy, but if you go to the river in fall and watch people fishing, not many of them get this correct with a high level of consistancy. Proficiency aside, a reel suited for float fishing should make it easier to free spool the line just right so that the above two objectives could be met on a consistant basis.
I am not trying to knock down spinning reels as I still love spinning for salmon. Last season, I have caught many salmon on both spinning reel/float combo and also baitcasting reel/float combo. If I had to compare what is more effective for float fishing here in BC, I would say without doubt bait casting reel. The simple reason is that "feathering the spool" with your finger on a spinning reel will not get you the consistancy of "thumbing the spool" on a bait caster to get the line flowing just right. We have to remember that on an average fishing trip, a fisherman will make hundreds of casts a day, and easier this part is higher your chance of concentrating on other things like keeping an eagle eye on the float and be ready to set the hook in an instant. I have been using a spinning reel since I was eight and a bait caster since late teens, but it is easier for me to "thumb the spool" than "feather the spool with my finger" and I would say same would apply to most fisherman. Maybe I have a dumb finger and a smart thumb.
In other areas, like Great Lakes region, spinning reel/float combos are more popular because they fish in rivers that are generally smaller, shallower and less turbid than in BC or Washington. More delicate approach is used there using smaller floats/tackle and spinning reels are a more effective in delivering those smaller package to tight lies.