Logun MK2

Patron saint of quirky PCP guns here. My .22 Maximathor needed a playmate so I took a risk on this Logun MK2 Professional in .22 from AoA. Came to me empty. Can’t get it to fill using FX fill probe which is what AoA said it needed. Does anyone know if this is the correct fill probe? I know a lot of Loguns were made by FX but this one I believe was UK made. Have also heard they’re difficult to refill when emptied so if anyone has tricks would be much appreciated. Thanks.

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