Well...if you are holding the shutter release down for 4-5 shots, I would hardly call that spraying...4-5 seconds is what I'd call spraying. Perhaps look into the faster CF cards, that may improve your write speeds.
If you find yourself bogged down in the PP by moving to raw, it could be either a)the adjustmnet/learning curve effect, or b)you just don't edit much in PP and it takes more steps from raw to get where you want to go.
If it,s (a), give it a while and you will get there. As your PP changes, your speed to end product slows from time to time. As you get better (even if you already know how to do it), the time frame for PPing decreases. Case in point is my time frame to add borders to shots. Before I knew all the steps natively I had to think about each one and methodically work my way through each to get where I wanted to go. Now it's like "I want a border THAT color to frame this shot" and ten seconds later it's done. If I want to change border colors, another 2 seconds.
If it's (b0 and you find you are just going throught he motions of getting it from raw to acr to jp where you ultimately want to be, then raw may not be for you. Yes, you will lose some of the "control" that raw shooters sing the praises of, but since you never really utilize that measure of control, it's not needed. A friend of mine from college grew up without a father, and I said to him once "Wow, that must have been rough." His response: "Not really, you never miss what you never had."
In his case, he did sometimes yearn for the relationship a father and son have with each other, but since he never had it, he couldn't "miss" it. If you yearned for more control over your pics, once you tried raw you would have been hooked. Since you tried raw and only find it to slow your PP time, then switch back to jpg, you don't use raw because you don't need to use raw. If you (and your clients) are happy with your results form jpg shooting, then so be it and don't worry about the shoulder tappers that say "Psst...you could get better shots if..." Enjoy your shots and workflow if they work and don't worry about tools you don't use or need.