I'm struggling to learn the small jump over the koopa in front of the two goombas in 1-2. Sometimes I jump too soon and hit the bricks. Sometimes too late. Sometimes too high. I'm really all over the place on it.

Anyone use and good mental or visual cues? What do you all look at when you do the jump? The koopa? The bricks? The ground? Mario?

I'm aiming for a sub 5 time at this point and feel pretty good about the rest of my strats, but this is still killing like 80% of my runs. I'd greatly appreciate any advice!