First, let's define it. BTCL value = Beat the Closing Line value.
It's simply a measure of the difference btw the # on your ticket and the AVERAGE closing line on that event. Sport doesn't matter, and it can be applied to spread or moneyline. Count up your BTCL net over several plays (like 1000+), and that's your average BTCL value.
1) Let's start w/ the theory end. Is BTCL value the beginning + the end? IE, do you need to have BTCL value to clear a profit over time?
2) If it's important, how do u go about getting BTCL value? Line-shopping would be one way, but I'd argue that lines move more in unison in the era of quick technology. 2nd way would be modelling, where your Model Indication differs from the current market #.
After this simple presentation, is there anything I'm missing? If BTCL is important, on what sports is BTCL hugely critical? Good luck out there, boys.