I don't typically cum buckets. In fact, I cum relatively small amounts every time, especially after I have already gotten off a few times.
I have never had a complaint about it, and I have had MANY girls tell me they prefer it that way. Less mess, and they are not gagging on a huge mouthful of splooge every time I go in their mouth.
I do WISH sometimes that I could pump one out like Peter North, but it simply isn't in the cards for me. So with that said, in my personal experience, it doesn't really matter either way. In fact, lots of women don't want to be totally covered in it, or have a large amount of semen in their mouth..
just my 2 cents