If i understand correctly the official errata/faqs at page 2:

1. if i place proximity mines under a ship

2. the mine detonates BEFORE the ship moves

3. ths ship rolls 3 red dice

4. if the ship is still alive, now it can move

correctly?

They only go off if the movement template crosses it or the base ends up on them, way I read it is if they're underneath your ship and movement template doesn't touch it they don't go off

So my thoughts was rights?

They only go off if the movement template crosses it or the base ends up on them, way I read it is if they're underneath your ship and movement template doesn't touch it they don't go off

This is correct.

The errata was added to make sure that Barrel-Rolls and Boosts would still make 'em blow, even if the final position didn't.

Placing it under a ship is no guarantee it will hit that ship. Besides the chance the ship could move off of it without setting it off another ship could come by and set it off before the other ship has a chance to. The Proxie mine only hits ONE ship even if it happens to be "under" several of them when it is triggered.

If i understand correctly the official errata/faqs at page 2:

1. if i place proximity mines under a ship

2. the mine detonates BEFORE the ship moves (only if movement template crosses the mines. Think of it like landing on an asteroid and flying away!)

3. ths ship rolls 3 red dice

4. if the ship is still alive, now it can move

correctly?

Added to important part to clear up if needed.

Only the movement template and the bases final position after movement are used to set off a proximity mine. The base position prior to moving does not count.

If a ship has a P.M. under them, then when they move check to see if the template overlaps the P.M. token. If yes (boom) if no, check that movement and base final position clears the P.M. If base does not clear (boom), if it does then the P.M. was avaoided.