The thing about
the baroque bow is that there is no such single thing. The baroque period covers about 150 years, and it is increasingly clear that the idea that one type of bow is suitable to cover this entire period (from Monteverdi, through Corelli and past Bach) is not really tenable.
Over the last twenty years or so, I have increasingly wondered about the whole business of our
HIPP (Historically Informed Performance Practice) movement, and my research has led me to question rather many assumptions that I had developed and held for the previous 30 years. Much of my research can be seen on Traditions of Baroque Violin Playing, and it's sister site A Timeline history of the Violin Bow - from c. 1600 - 1800.
During my search for appropriate bows - driven mostly by iconographic evidence for the earlier part of the period - I realised I would be better of making them myself. After more than 10 years working at this I am now happy that what I am making is not only historically defensible, but also works well! You can read more about it on my site: Richard Gwilt - Historical Bows.