Does a strict £2,500 boundary for 'longshot bets' actually improve our chances of spotting market manipulation, or does it give fraudsters an 80% discount on detection? Someone aiming to hide insider trading could easily break a £3,000 buy into two £1,500 transactions, immediately lowering their risk of being flagged by 50 percentile points for this specific rule alone. This kind of fixed threshold can create a clear roadmap for evasion, offering negligible protection if bad actors adapt. We need detection methods with a higher ratio of capture to attempted circumvention, not easily sidestepped definitions that score low on actual effectiveness.