For myself I have no definitive test in and of itself.

I only ask of them to look me straight in the eye upon
our meeting one another.
To speak to me with responses that come from an open
heart and mind and never look away while doing so.

There are simply those times with words exchanged,
thoughts shared that you can determine if something
inside each has found a spark within the other.

Submission in a physical form is not that difficult to
achieve through tales written on the pages of
the flesh.

I.E. using tools of the trade such as cane, clamps, clips,
paddles, hands, etc.

I prefer to see them from the inside, to know that
mind set within, what is desired or needed most in
this ultimate act of trust and sharing.

What other wonders we may achieve is just icing
on the cake as we've already created a delicious
recipe that both can share and enjoy.