Would this work?
Load a full load of secondary slime and release it straight up above your head.
Hammer-jump straight upwards and time the jump so that you pass through the load of slime dropping down just as it bursts in mid air.
The bursting blob boosts your flight as you pass upwards through it.
Load a full load of secondary slime and release it straight up above your head.
Hammer-jump straight upwards and time the jump so that you pass through the load of slime dropping down just as it bursts in mid air.
The bursting blob boosts your flight as you pass upwards through it.