Anybody throwing one or both of these tiny jigs? If so, what lb. test line and what trailer?

 

I use them both.  The Mono Spin is a really tiny jig, I use it with L/UL spinning tackle and 6lb Supernatural mono.   For trailers I use tiny crappie plastics, mostly grubs and paddletails.  The Guard Spins are a little bigger and have a thicket guard, so I use more powerful L/UL BFS tackle and 7lb Sniper.  For trailers I use smaller craws, just picked up some Reins Ring Craws to try out with them.   

There isn't much of a difference between the 2, in terms of practical use other then weight.  The head shape is a little different, the hook on the guard is a slightly bigger #2 compared to the #3 on the mono which gives you a little more room for a thicker trailer.  You get a few more weed guard fibers with the guard spin, but in reality if your counting on guard to stop the jig from snagging your going to lose a whole lot of jigs.

I fish them on the bottom on, but I actually swim them just as much so my trailers reflect that.  My 2 favorites are both made by Reins, the 3" bubbling shaker and the 2" G tail twin creature.  There are other great trailers I have used like the tiny brush hogs, 2 1/2"  swing impact and ktech little spiders.  I really like the ktech spiders, but that skirt on the grub can really hurt casting distance with lighter weight particularly if there is any wind.  The ring craws are about as big as I go before there is hardly any gap left on the hook.

I fish them on 8 or 10lb braid  10-12' of 6-8lb FC leader.  They are really small, but I can honestly say these little jigs absolutely smash em.  The limerick bend makes the hooks very strong for the size and wire gauge.      

Get yourself some Keitech easy shakers and cut them down to use for a trailer. That is my favorite way to make a slow day improve. I use 6lb line and it’s seems to be fine, no bent out hooks. I keep the drag a little looser just in case. I swim, hop, twitch, deadstick it.