I know he had an incredible gift for intuition, a common trait of the Gand if I remember correctly, but I don't think he was Force sensitive. I read it awhile ago, but I'm pretty sure 4-Lom did manage to experience intuition.
Now about the original topic, no, I don't think it's possible for Boba to be Force sensitive. In the Star Wars Roleplaying Game, a person gets darkside points for doing evil deeds, no matter the intentions. Anyone can get a virtually limitless amount of Dark Side points, but only a person with the Force Sensitive feat can have more than 5 Force Points. The RPG is not a reliable source to invoke here, as I can make a character, have him kill a few babies, and have a ton of Dark Side points to spent. And on the point of droids, they can earn Dark Side points but not Force points in the RPG. Unless a person is Force Sensitive, the DSPs only go towards alignment. But if you want to go by the game, does he have the Force Sensitive feat? Does he have more than 5 Force points? I'm not gonna get my Core Rule Book out, but I don't think so.
And besides, he's had too many direct dealings with Force-users for them not to notice any Force Sensitivity. And where would he get it from? He has no Force heritage, and while I know a Force sensitive child can come from non-Force using parents, it's highly unlikely.
Now personally, I think the idea of mcs is completely idiotic. One of Lucas' mistakes that are becoming much more common since Episode I.
"Alright, they're in front of us, they're behind us, they're on our left, they're on our right.....they can't get away this time."
-Lewis B. Puller, United States Marine Corp