If we're counting techniques as a single component to be held back by, Sanji still has Vergo beat:It's the same in that you are taking away a part of someone's arsenal that they heavily use and are extremely proficient in. His nickname in the OP world is versed around it, meaning it's something he uses often and consistently enough that that's how he's recognized in the OP world. It's a weapon. If Vergo had it, he could fight with martial arts and his signature weapon. Take it away, part of his arsenal is gone, meaning he can't do everything he could with it. That's not a hard concept to grasp.
I never denied that they had to tag-team him to land the attack, but the fact remains that the attack had enough power to reduce Doffy to near death. Sanji's moves didn't have the power to scratch him, while Luffy's Red Hawk had at least the ability to make Doffy spit up blood and wound his stomach. Yes, spitting up blood doesn't mean much anymore and the wound was superficial, but it was more than Sanji would accomplish with his blows. They had enough strength to physically cause damage to Doffy's body, Sanji didn't.
He used Sky Walk in his initial attack on Vergo. Not really. If Diable Jambe had no effect at first, using more times wouldn't really matter. Diable Jambe deals with scorching heat, if you can withstand the heat in one blow, chances are you wouldn't feel it in the others. 0 ten times is still 0. And I can easily say that if Vergo had stronger Busoshoku Haki, and he most likely does, the fracture would have happened either way.
1. They were far away from him and Vergo by the time Vergo had fractured his leg. He could have used Hell Memories and the fire wouldn't have gotten to them.
2. The gas wasn't close enough to his body, nor was it close enough to G5 for the explosion to get to them if it was caught.
Yes, five. 1. Soru 2. Geppou 3. Haki 4. Shigan 5. His signature weapon. Taking away Vergo's bamboo is the same as taking away Smoker's Jitte. They have ways to fight without it, but their combat would be better with it because it allows them to use their full arsenal.
1. Anti-Manner Kick Course, 2. Parage Shoot, 3. Flambage Shot, 4. Frit Assorti, 5. Grill Shot, 6. Poele A Frire Spectre 7. Houchou Sabaki, 8. Epluchage, 9. Mutton Shot, 10. Collier, 11. Epaule, 12. Epaule Shot, 13. Cotelette, 14. Poitrine, 15. Quasi, 16. Tendron, 17. Basse Cote, 18. Slice Shoot, 19. Escalope, 20. Collier Frit
JUST TO NAME A FEW.
Logic = Highly flawed. Rekt.