Why don't I use my serge?
One- I've never thought it would make it easier to do.
Two- it will compress the batting and make for a less full feeling binding
Three - I'm not that good at getting a really straight seam with the serge like I can get with my sewing machine. Four- If I mess up a bit and sew too wide a seam, the machine is going to cut that too, so it's not going to be near as easy to rip and fix.
Five - I don't find the serge cuts multiple layers as nice as I'd like. Maybe my new one would but I've not tired it
Six - sometimes when serging, the cut off fabric gets going the wrong way and ends up getting sewn and then I've got to stop and cut it out so I can continue. Hate when that happens!
I recently bought a new BabyLock Ovation and will be taking a class with it. If any machine could serge a binding on successfully, I'm sure this one is it. But I still don't think I ever would. It's just too easy using my Juki.