1 Condensation is expected to a degree and there will be more of it towards the end of incubation.

The key here is to make sure that the condensation on the top (if any) is minimal and does not drip on the egg.

2/ Subtrateless method is really bullet proof, putting your egg in the substrate can too if done right (key here is if done right).

If not done right people will either experience eggs that are too wet (which in this case are hard to salvage) or eggs that are too dry. (We see a few of those every year on the forum)