Yes, I'd use more yogurt(higher %) than lemon as the base note...cap creamy or Greek or tfa Greek yogurt? Which lemon? Lemon for me is tricky, cap juicy lemon works in some things and not in others, I think I prefer tfa lemon just because it's more versatile for me(milder?)...I have a few trials aging with juicy lemon though...we'll see how they turn out(ice tea and lemonade not yogurt

). Sweetener up to you, might try without, or very low...I find it helps my mixes but I stay at or under 1%, again I use sweetener, not the em/cotton candy, but I'd still keep it low regardless......creamy yogurt cap is mild and sweeter, I like tfa Greek for the yogurt "twang"(I don't like the way it smells in bottle alone, but makes a nice
vape)...lol, I want to help but might be more hindrance here...ok if it were me, I'd likely go 5-6% yogurt, 2-3% lemon, .5% cc/em if any..maybe 1% sweet cream for initial mix then adjust as/if needed...I start low first...easier for me to note what needs to go higher in next rendition, let's hope others respond to see what they can offer

I "tootle puff" too, if you drip or squonk, different %'s perhaps, and I age things too, not a shake and vape gal...