Lately I'm retopoing a lot and I'm wondering why there is no fast way (single action) to extrude an edge to a single vertex and draw a triangle.
So maybe add either a separate operation for this or create like a toggle to change the Tab+MMB from "... extend border edge loop" to extend to single vert. So we could easly switch very fast between quad (Tab+LMB) and triangle (Tab+MMB) and save clicks, operations, nerves and time.
Furhermore it would be very handy if you could on the fly change the surface offset with an interactive slider like the the other brush size sliders. For example if "precision mode" is on the standard hold-B to change brush size changes to a radius around the last selected vert and displays the surface offset.