Originally Posted by
tennisguru
Is that actually true about a reserve spillover rotation (what the OP is asking about?) 23.G.10 makes no qualification for meeting the GS trigger in order to earn single pay, no credit for the portion of the rotation that interrupts their REG days off. A reserve spillover is not a GS, so I’d argue that just like an IA it is not subject to the GS trigger.
Reserve spillover trips go towards guarantee and do not move you towards the trigger. That's why it's generally a bad idea to spill a trip from line to reserve.