sr71, bacern, mustafagander & others, hello,
i agree with both of you , i have also for the ng, the ldg gear tfr unit cb's on P6-2, C15 & C16.
although our sop's recommend not to pull cb's unless required by a NNormal procedure, i admit in this case, it would be better to first pull the relevant ldg gear tfr valve cb's, avoiding a momentary full manual reversion mode.
for the classics you need to land with the n°1 engine out, but on the NG, if you leave the manual landing gear access panel open , the landing gear will not retract by restarting the n°1 engine. also, what remaining hydraulic pressure, if any, a windmilling engine will produce, i don ' t know, but it' s a good question.
rgrds,
bm