Hey! I have been taking a look at the new survey system, and also been playing a mod that mimicks the new surveying probabilities. 

Overall the changes to make the surveying more unreliable is an excellent idea. However, have some concerns that this will make the early game specifically a bit too inconsistent and frustrating. In the early game as TEC or Advent, I think it is important to survey for at least one more capital ship, as you will be at too much of a disadvantage to someone who does. Moreover, if and when you get your second capital ship will be very heavily reliant on luck. After testing, I also had more that one run where I frantically surveyed both my home planet and my first few planets, but did not get what I needed for a second capital ship. 

My suggestion would be that the garantueed exotics on the home planets stay the same, or mostly the same, while the surveying for the other captured planets change as you intend. This will keep the early game reliable while still counteracting the overuse of capital ship through the mid to lategame.

Since one of your earlier patches was specifically about making the early stages of the game more enjoyable, I would especially flag that this threatens to run against your earlier work on that front.

Thanks!