tl;dr I haven't tried yet but really want to
I only have one type of sock because I finally found a brand that doesn't have any elastic whatsoever (Buster Brown) without costing an arm and a leg (...Cottonique)
They're very thin socks so they wear through in about a year :( I've accumulated almost 6 pairs with holes in a drawer waiting for me to be brave enough to attempt darning.
The main thing I worry about is being able to feel the darning if it's too bumpy. If there's the slightest variation in pressure anywhere on my socks, I find it impossible to ignore (hence avoiding elastic bands).
Do you think the netting stitch is worth attempting if I'm worried about unevenness? I really like the idea of repairing a stretch fabric with a stretch darn because 1. things matching make brain feel good 2. I'm assuming it'll result in less strain to the areas where the stretchy original fabric is joined to the repair, if there's less difference in elasticity