Why Liverpool was the likely choice for Eagle's refit

Why was Eagle sent to Liverpool for refit instead of Singapore?

Liverpool probably offered more experienced personnel, while other carriers were already intended for Singapore.

Liverpool is suggested as the more attractive refit location because it had more experienced personnel. Singapore's recent dockyard work had focused mainly on cruisers, with less experience of aircraft carriers. Other carriers, including Indomitable, were expected to go east, so there was less apparent need to send Eagle as well. Sending Eagle to Singapore is described as a possible insurance measure, while the reasons for the historical choice remain tentative.