Ronin' post is spot on, but I think its a perspective thing.
Forget style, you, a fighter, have your 'kit', you skills. What is a 'full' set? One that works.
How many techniques do you need in your arsenal? <shrugs> Enough. Some guys can work you over with 2 or 3 good moves. Others, surprise you with unorthodox style. Others just ad-lib from a pool of skill.
I believe it comes down to depth vs breadth, a few good skills that are of the highest percentage because you do them better than anybody else.
This is where forms collectors come unstuck, (in terms of fighting) thinking that more moves is more skill. One reason Boxers are so tough, limited but effective material practiced relentlessly.
Guangzhou Pak Mei Kung Fu School, Sydney Australia,
Sifu Leung, Yuk Seng
Established 1989, Glebe Australia