F, 43 years old, 4 feet 11.5 inches (yes, that half inch matters!)
**First-ever 5K race 11/28/13: 37 minutes, 18+ seconds, no stopping**
I have been using extra-light olive oil but am having trouble with it either turning rancid quickly or maybe being a little off to start. I use one-third EVOO more or less and it tastes fine. I have used all-EVOO before and hated the flavor. Most recently I got high-oleic sunflower oil (Mark gives it a thumbs-up) and that worked well.
Mark has a recipe for something like "ghee mayo," where the mayo is made with all EVOO and then you whisk in melted ghee until it doesn't taste so bitter. Might work for you.
What about lard? I would suggest bacon grease, but it's my understanding this creates a strong bacon flavor in the mayonnaise. Which sounds good to me!
High-oleic sunflower oil blended 3:1 with scentless coconut oil is my go to blend.