Hey Chuck
Just noticed that your violin has fret's never saw that on a violin before??
Well yeah...It's not too common nowadays but actually that idea was applied during the renaissance, in the baroque days.
There was an instrument called the "viol" which had 6 strings, was played with a bow and had frets.
...
Nothing new under the sun.
As far as frets, it won't save you bad intonation while playing with a bow.
Somehow you hear the note where your finger lands, not the fret position...So you have to hit
the top of the fret with your fingertip, not behind it like a guitar.
Frets act normally when you play pizzicato (Strumming the string with a finger from the bow hand).
It's more of a visual aid when starting a line on high notes...And helps a bit doing double stops on the low strings
and get those chords in tune.
But I could play just about the same shit on a fretless violin...
I actually own a few standard violins and some 5 string electrics...All fretless.