
So really, where is the proof that the Empire doesn't have shielding sufficient to stop high caliber rounds? If deflector shields were impotent against physical collisions, there would have been no reason to wait until the Executor's shields were dropped.

The A-wing fighter that damaged the Executor's bridge tower didn't make its suicide attack until after the Executor's bridge deflector shields were dropped. They point out that the TESB novelization described asteroids striking the "hull" of an ISD, but they ignore the twin possibilities that the ISD shields were down, or that the particle-shield and hull are interchangeable concepts since some types of particle-shield exist on and beneath the surface of the hull. Another possibility is that its magnetic clamp was able to secure it to the hull even though the shields were up, since the particle shields are so close to the hull. It could have hovered in the sensor blind spot until the shields were dropped. They point out that the ISD's shields didn't stop the Falcon from landing on the bridge tower in TESB, but it must be stressed that it did not land immediately. Furthermore, some types of particle-shield exist on and below the surface of the armour according to the SWEGWT, so a physical object will strike the combined shield/armour at once. They note that an asteroid struck the Falcon's hull in TESB, but the Falcon had its shield power redirected to aft shields due to the relentless pursuit and the asteroid would have logically hit the front part of the ship.

As usual, they attempt to contradict this canon information with numerous misinterpretations: Furthermore, the canon ANH novelization clearly states that the Falcon's deflector shields saved it from instant destruction when it emerged from hyperspace into the "meteor shower" that was Alderaan. Not only are particle-shields referenced in the SWEGWT as well as every other official source, but we saw specialized particle-shields in TPM such as the Gungan "hydrostatic" field that kept water out of the Otoh Gunga underwater city-spheres as well as the "Bongo" personal watercraft. They claim that deflector shields can't stop matter, based on the assumption that the DS1 exhaust port ray-shield was the only type of shield in the Empire. Federation cultists have propagated numerous myths about Imperial shielding:
