Every so often, I have post that does pretty well, but most days I don't even make it on the top post page. It doesn't effect my leaderboard standing very much, though.

I also think commenting and zapping are the more fun parts, but that's obviously personal taste.

Yes, I can slightly agree but your zapping ans commenting is very respected as I've seen. 

For posts, you are there among top tens in top post and that post is also about zapping..

IamSINGLE

What's Your Maximum Reward on SN Leaderboard (daily)?

I appreciate that, but they don't usually rank very high on the top posts rankings.