I run 219. I always get 114 length and it is about 4 to 6 links too small. So I have to use a chain breaker and lengthen the chain with a second chain. I've ran about every brand. RLV, EK, DID. Never had a problem with any in 206.
When I was racing, in the dark ages, I always purchased chain by the 10 foot roll. Being the inventor of the Mayko chain breaker, it was easy to make the chain as long, or as short, as it needed to be. Lots of people make that same chain breaker today. I made the 1st one, I think, in 1973. Don't leave home without it! lol