Percival Stoneham is FanPower's Senior iGaming Expert, specialising in the evaluation of non GamStop casinos operating under international licences for UK players. With over 8 years of experience in the iGaming industry β including a 3-year stint as a compliance consultant for an MGA-licensed operator based in Malta β Percival brings a unique insider perspective to every review.
His expertise centres on the technical and regulatory aspects of offshore gambling that most review sites overlook: licence verification against live regulator databases, the mechanics of bonus term structures, RNG certification standards, and the practical implications of anti-money laundering requirements for UK players at non-UKGC sites.
Percival has personally tested over 120 non gamstop casinos using real funds, and has rejected more than 60 operators from the FanPower recommended list due to unverifiable licence claims, excessive withdrawal delays, misleading bonus terms or inadequate responsible gambling tools. His rejection rate of over 50% reflects an editorial standard that prioritises player safety over commercial interests.
Every non GamStop casino reviewed by Percival undergoes a 47-point evaluation across the following categories:
Licence number verified against the regulator's live public database. Checked monthly for continued validity.
Minimum Β£50 deposited, 48+ hours of gameplay across slots, live casino and table games.
Timed withdrawals from request to receipt, minimum 2 payment methods per casino.
Complete review of wagering requirements, max bet limits, game contribution rates and withdrawal caps.
SSL encryption verification, player fund segregation policy, privacy data handling and GDPR-equivalent compliance.
Cross-referenced 200+ verified player reviews on Trustpilot and AskGamblers, weighted toward recent entries.
Percival operates under FanPower's strict editorial independence policy: commercial relationships with casino operators do not influence review scores or recommendations. Operators offering high affiliate commissions have been excluded from the recommended list on multiple occasions when they failed to meet our testing standards. The full FanPower editorial policy is available on request.