In reply to ColmShannon88:
> "Onsight flash" is not thing. "Beta flash" is a flash with the word beta added for no apparent reason.
There's a perfectly good reason, being that Flash itself originated to denote a no-falls ascent. This was then further refined into Onsight Flash and Beta Flash, depending on prior knowledge. The part that makes it confusing nowadays is that while Onsight Flash is now abbreviated to Onsight, Beta Flash is not abbreviated to Beta but rather to Flash.