Why do you think that you need to change to a baitcaster?I thought the same thing at one time too.Everybody else had one.I got one and fought it and fought it.I no longer own a rod with a trigger.I have never had a baitcaster follow mw down the river without suffering from the inevitable backlashes.Line twist on a spinning reel can be just as frustrating.
Baitcasters used to generally have better drag systems,this is no longer true.
The mechanics if a baitcaster is going to last longer than any spinning reel.This is especialy true under heaviar loads.If you are fishing a particular river that requires quite alot of weight to drift fish then I would recommend a baitcaster.They handle the constant heavy load alot longer than a spinning reel.
I have seen some old timers do amazing things with the old dierect drive reels.Ask him how he got so good and he would remember,in his mind,when he wasn't that good.Practice,practice,practice,practice,practice and more practice.There is no substitute.
Baitcaster require a fair amount of weight to function.Go below a certain amount of weight and they are a practice in frustration.Go some where,like a ball field, and make some casts with a couple of ounces of lead.Work your way down from there and you will find that point .Is the amount of lead you still have enough to fish the river you are fishing?Maybe you do not need a baitcaster?