User blog comment:Fliu/Chapter 946: Luffy's Next Big Step/@comment-180.191.122.111-20190622004046/@comment-2600:1702:3C50:A6E0:D880:77BF:D9AF:5529-20190626021050

My point is that gear 4 is a rather desperate move since it leaves him vulnerable similar to Gear 3 and Gear 2 after a lot of usage. I actually find Gear 4 having multiple forms for different situations quite innovative. People were asking why Luffy used one form over the other in his fight with Katakuri as opposed to Doflamingo. I get the feeling that the form he used for Doflamingo called Bound-Man if I am not mistaken was the best one in that situation, just as using Snake-Man against Katakuri was the best way to finish the fight. Likewise, using Tankman, against Cracker probably wouldn't have worked against another opponent but it worked well there. He showed in his fight with Doflamingo that while he was able to strike him with Gear 2 and do damage, he was not able to do as much damage to him as gear 3 would have and gear 3 was too slow to hit the elusive warlord. Gear 3 works best with large opponents who cannot or will not dodge or as a surprise attack. As shown with Lucci, it has devastating offense and strong defense but after that initial hit Lucci avoided getting hit again. He was only hit in the first place because he didn't dodge, a decision that cost him later.