[PorkchopDJG]

Yeah the most obvious answer to the OP's question is Limit is all we have so we get good at it.
But really Canterbury is funny because you see some regulars there that are very good players but there are also some idiots that are the worst players I have ever seen. Limping with Q,4s from early pos, not raising preflop with KK, cold calling an EP raise with K,Toff lots of stuff like this.
To me the key there is finding the tables with the latter type players and table changing away from the tables with many known regulars and good players.

Most of the tables there are extremely Loose/Passive so if you ever want to see what kind of games SSHE talks about CP is the place.
Study that book and chose your tables wisely and you should win monies on your visit to CP.