If a melee piece attacks Jar Jar and he makes the save he can redirect the attack to a Viper Droid and as long as the attacker isn't also adjacent to the droid the attack will work like he's a non adjacant non melee piece shooting at the droid?

If a melee piece with a lightsaber attacks Jar Jar and he makes the save and then redirects the attack to a non adjacant piece with damage reduction the piece will get to use its damage reduction?

In the above situation if there's a Gungan Shieldbearer next to the DR piece and the damage is bounced back will it be the amount of damage before or after DR is counted?

If the Gungan Shieldbearer is next to a Viper Droid anything that shoots at the Viper will have to make a shield save for both the Viper's MS and the Gungan's ES. It doesn't matter if they miss one save or both, once one is missed the damage is bounced and there's no longer any incoming damage for the second shield to reflect?

If I have multiple Shieldbearer's adjacant to the same piece will attackers have to make an ES save for each one? Same as above where once one save is failed they take the damage?