Amos,
I cannot tell a lie, I have been using lifts on Carlita. Rather than rig special topping lifts, I already have enough clutter, I have been using the mizzen staysail halyard for the mizzen lift. On the main I am using about 4' of 5/32" line with a small S-hook at the bottom attached to the forward side of the mizzen mast at the right height so that I can slip the S-hook thru an eye at the aft end of the main sprit.
The main lift tends to be self centering and stays put when I tighten the main sheet. If the mizzen starts to dance around at anchor I run a line thru the spinnaker block on top of the coaming aft over to the sprit. This triangulates with the lift and mizzen sheet and the system is rock solid. If it got bad enough to bother the main sprit I could do something like I do with the mizzen.
For a quiet night at anchor I make sure that the centerboard is hauled up tight and all halyards are tied away from the mast.