Definitely of a dunk (vs. sprinkle) denomination!
It is the only way to be baptized. After all, it is supposed to be a public display of ones commitment to the lord.
I personally have nothing against a sprinkle baptism. After all, would anyone expect a person on their deathbed to be dunked? No, so a sprinkle on their head would suffice.
However, nothing should stand in the way of a healthy person from being dunked in a public way. Those who are ashamed to publicly admit their devotion and love for God, need to consider what Jesus told his disciples when he warned them about the troubles they will face for following him.
Whosoever shall deny me before men, him will I also deny before my Father which is in heaven.