Re: Worst shots in your repertoire?
Anyone saying the serve, you can practise it even by yourself. You don't even need to be on a tennis court to practise your toss and the toss is the key to a good serve. I used to have a bad serve but now I can get it in almost all the time, it won't be a big serve but it's in.
Volleys, you can't practise. Also, if you're a strong baseliner, there's little incentive to practise volleys. I like hitting swing volleys though.
My slice is actually not too bad but in a game situation again, my first instinct isn't to slice the ball back.