I've never considered the possibility of Chopper learning Electro. I've proposed that Luffy could learn it in the past, so now that I think of it, there really isn't anything that would stop Chopper from doing so unless it really is specific to Minks.
I don't really agree that Monster Point and Sulong are equivalent, though I see the comparison of being animal super forms that are physically draining on their users. I think with the addition of flight and the smaller size allowing for maneuverability, Sulong is better for taking out distant enemies quickly. Monster Point, on the other hand, being particularly large and powerful makes it a good close quarters tank, allowing Chopper to take out approaching enemies while defending a point.
I don't really agree that Monster Point and Sulong are equivalent, though I see the comparison of being animal super forms that are physically draining on their users. I think with the addition of flight and the smaller size allowing for maneuverability, Sulong is better for taking out distant enemies quickly. Monster Point, on the other hand, being particularly large and powerful makes it a good close quarters tank, allowing Chopper to take out approaching enemies while defending a point.
On the other hand, that's true in term of combat style it is different between sulong and monster point. But what I wanted to say is that having mink on the ship doesn't really give much variety in the crew, because basically both is an animal transformation that give a huge physical boost, and both have time limit as well. Also minks needs to wait for the moon to transform, but chopper can transform anytime with his rumble ball. And for long range combat, he can just do jump point and then turns to monster point when he already get closer to the enemy.