One advantage, they are a lot smaller so easier to do feet etc solo even when theres a large number. They tend to 'scatter' more than' flock 'so are best if they are bucket trained from an early age! Ours give lambs that are half twins and half singles consistently (this is to a Shetland tup). Fencing should 'look' good (even if an bit wobbly in practice, if it looks high and solid enough I find they dont bother trying....unless there is little grass in their field and lots the other side of the fence....We vaccinate (Heptavac P+) about six weeks before lambing with a booster 2 weeks prior for any that havent had a jab as a lamb. We use worm counts and have a lot of ungrazed ground so no worm probs as yet (but would worm if/when needed)
I started with 6 in lamb ewes a couple of years back and now have had 7 in the freezer, 1 lost to a dog/fox and so currently have 20 plus a ram. 15 of them are lambing in April! Havent yet seen one being born!!! despite checking every 5 mins, they sneak em out in between the checks. No lambing probs to date but havent had first timers before this year so watch this space. All have been very good mothers, havent had to adopt any/hand feed any. All lambed outside then scooped up and brought in for 12-24 hours to dry out/be seen feeding/castrate any boys.
You will be addicted and the lamb from them is a-ma-zing! Esp a boned, rolled loin. Unbelievably good.