Small ball involves having a fairly wide range in a game where tight is generally right.
I think Negreanu wrote a book on small ball, which I haven't read but I have checked out every online source on the subject I was able to get my hands on. Maybe my knowledge of it is incomplete, but from what I can tell:
You're making small raises which allows you to play a very wide range. This is good, except it takes away from your ability to isolate with your good hands (and more importantly, you're going to get stuck playing hands like AA with a very high SPR on the flop), it also may make it difficult to get stacks in with bigger hands by the river (depending on how deep you are).
I think it's kind of implied that you're openning your range up in position which means that a lot of your "trash" hands that small ball allows you to play are still probably hands you want to raise for value. Differently stated, I think your range in LP can proffitably be very, very wide and as soon as we extend from hands that are profitable to hands that we will only play if it's cheap... I just don't think that's necessary.
Don't get me wrong, I like small ball, it's basically the way you want to play most of your hands. Start the pot small and you can do all sorts of great stuff that results in more money, but if you let the pot get big early then your room to manoeuvre disappears. Having a wide range when you're doing this also allows you to make the pot get very big very quickly, when you want it to.
With that being said, there are times when you want the chips going in at the start of the hand instead of towards the end. I haven't read anything that covers breaking from the small bet/raise sizes but I assume if you had a balanced range of bluffs and strong hands that you bet a little harder then you could get away with it. (Edit: This would mean removing some strong hands from the rest of your range... not sure how that would play into it since no one is giving you credit for a lot of big hands anyway)
Another point to consider: Your bet/raise sizes are smaller and your range is wider so thinking opponents are going to play back at you a lot more.