I have seen the pole hoisted with the spinnaker halyard
up the front of the mast, the inner forestay and lower shroud
. Ours is laid on deck clipped at the aft end to the starboardf shroud
and the forward end is lashed to the pulpit.
I can't imagine what you mean by anchor
lashed by topping lift
? Are you talking the spinnaker topper or the boom topping lift?
The boom lift should definitely be loose when sailing. There is a possibility that the a tight lift will restrict the boom moving forward.
FWIW - Our spinnaker halyard, topper and downhaul are stored on the pole ring on the mast. Some people don't like the slapping and clip them to the lifelines
. I like the sound of the lines gently slapping the mast at anchor. It makes me sleepy....