1)
Why did he strike 200 men? He needed only 100 Orlos!
1.
Abarvenel: He wanted to show the success [of himself and his men].
2)
What is the meaning of "va'Ymal'um"?
1.
Radak: He completed the requested amount, and sent them via Sha'ul's servants or David's men. Mohar (Kidushin money) is normally given via a third party. Abarvenel - it would be disgraceful for David himself to bring foreskins, so he sent it via his men.
