Based on what you just wrote, it is clear that you have not watched him enough.
He actually uses drop shots many times, surely above average. He slices as well from the BH enough.
I understand he was not on the radar much, I have not seen him either before Stuttgart this year, but since than I follow h closely.
He has more to his game than you give credit him.
Hey, Herios, if you have seen him a few times and is saying that... there must be a good reason, then. As I said in other posts I was not impressed with the (little) I saw. Ok, some bad mood got in the way, but... anyway, here are my basic honest questions:
Can he sustain power? I have seen him hitting winners, but can he
consistently keep hitting hard until the opponent misses or returns a really easy ball?
You mentioned the drop shot. His variations are centered on the drop shot, or he
really can apply variation on his game? If it is "just" the drop shot, ok, but you better be damn good with it...