I've been casting #2 sickles in 1/32 collar-less heads for some time now. I have another mold set up to do 1/16 collar-less with #1 and 1/0 for walleye fishing.

Every so often when I need to up-size baits I do so using the lightest jig possible and that #2 in the 1/32 is just the ticket.

The jigs I toss do not have a weedless feature. I will often rig a bait so the hook is ever so slightly poking thru the plastic [ala Slider rigging] and that works pretty well at working them in wood without getting hung much.