why dont pro players bluff with the serve like amateurs

It doesn’t work even at amateur level. Pros are built on springs so the server would get punished. A drop shot serve would lead to a volley volley battle at the net, serving is supposed to allow you to go to the net so why would you give the opponent an easy way to get it back?

Because you immediately put your opponents at the net which is where you don't want them to be. This strategy only works (arguably) at lowest levels.

Once you get good, you stop waiting for the ball to come to you. You start moving toward the best position to hit it. Against a great player, drop-shot serves will get punished badly. They can read your serve preparation, the distances are short, and players react fast. It does not resemble tennis at all, where the court dimensions give you much more time. So if your opponents are good enough, they will run, position themselves well, and take the net with either a lob, a passing shot, or a body shot. However, a slow serve can be very useful. A serve that lands and dies right near the glass, without bouncing up much, is perfect. Let me cook... If you manage to hit a slow serve to the glass, you will make your opponent: 1. Doubt whether to attack the ball or wait for it. 2. Adjust to a different serve speed, assuming your previous serves were faster. 3. Generate their own pace, which is much harder than just blocking a fast ball that comes straight at them. This will make them hit the net more often or produce short lobs. 4. If they do not attack the ball, they will likely give you a low-quality return, since they will probably have to lean back to hit it. Try it on decisive points by changing from a fast serve to a slow one. Just make sure it goes close to the glass, because if it does not, it will not work. Thank me later.

A pro is simply too quick 😁

In my last match, one of our opponents used it once and I couldn't get to it because I got caught by surprise. Then his partner repeated the exact same serve on my partner and I understood that it is a sneaky and cheap tactic that they use as a team. After that game, I told my partner to rush to the net together next time they slice the serve. I also started standing closer to the baseline so that I could make it on time. They were not able to serve long anyways so we didn't even need to readjust. Body language also gave it away - where they stood, their preparation, even the cheeky smile on the face before they hit the ball. Next time it happened, we were both at the net. After that, they lost every single point they served with a slice.

If you do this, you’re basically giving up the net position. You’re telling the opposition: come have the net, I will stay in the back.

I May be slow, but if you serve with a drop shot and I get to it in time, I guarantee your partner at the net is getting a bodyshot..

Cos why would you want your opponents to take the net with the first shot of the point!!! This works maybe one in 10 times at amateur level if the reciever is 50 year old with dodgy knees and lazy nature. Stupid tactic, seen as disrespectful among good level amateurs

Because it doesn't work, even at amateur level I have one partner who loves to drop shot serve and I hate it when he does it as it puts you in bad position if it's not perfect and now opponents are at net Serve is only to get you comfortable at net. Most amateurs are going for winner serves like in tennis, which is completely wrong as well

At the pro level the serve advantage is all about getting to the net and owning the net first in the point.

I started off doing this and haven't for several 100 games. It's appalling sportsmanship but worse it misses the very core of the game. Building a point in a rally is what padel is abou.