I bought a jar of extra light mayo before I joined WW. I binned it, I thought it was vile. I love mayo, and the light does bear a resemblance to the real thing, the extra light to me bears no resemblance at all!
I'd rather stick to just light, it's lovely on ajacket potato instead of butter!
Somebody else might really like it so you might need to try for yourself lol
But points wise it's 3tbsp (45gms) for 1pp
The extra light does taste completely different but I don't mind it though I don't have Mayo a lot anyhow and tend to use heinz extra light salad cream 36g works out at 1pp that 3 sachets instead of butter, although I only use 1 tbs still put it down as 1pp
I use the extra light mayo and I do like my creamy sauces! I don't like the hellmans one, but I do like the Asda one. I think its 2 or 3 tbsp for 1 point. They do taste different, but I just use it to mix in with my tuna or mix with some sweet chilli sauce. If you're using it plainly, I would just go for the light one, sometimes it's not worth compensating on taste!!