@gwscheer Remember I am new!!  Teach is having me use the whole bow more like what you did at :32 - :36.  Around 49-50 you did go about halfway down the bow then at around 1:00 you started using more of your bow for a short few seconds.

She is a classical performer, but I have seen AWESOME bluegrass players use just a small section of their bows. 

I found a better video - 

When Teach showed me how to play a staccato quarter note she used her whole bow in a quick movement to a dead stop.  2 staccato quarter notes slurred she went halfway dead stop then continued in the same direction to a dead stop again in the end using the whole bow.  The sound was so very very distinctive and loud!  She has done it on my violin too so it is not just her amazing violin.

I think your playing sounds great!  It could just be that I am having to overcome weird issues!!!

@ratvn - something else at this last lesson Teach had me bend my wrist way back [seemed exaggerated] when the tip top part of the bow is on the violin strings. And to keep the bow hairs rolled or turned away from me so that my thumb is hitting the frog.  One thing I noticed this bow rolling - it allows your bow hairs to lay flat on the strings and it keeps the top of your bow from flailing out when you are bowing down by the frog.