Hawk brake pads - worth it?

Well, yeah to the air in the system; it is kinda up to you to work that out. If you hate brake fluid, have someone else re-bleed it for you to be sure.

For whatever reason, I thought you had discs front and rear....my mistake. The residual valve in a drum brake line is normal, to keep excess fluid from being pushed back out of the wheel cylinders by the spring set, and then having to pump a whole lot back into them at the next brake application. So, what shoes do you have on the rear?

The pad you link to is for a stock front.....see the FMSI spec of D11? That is not the same pad at all as the D43 you reference previously. Is this linked reference for the pad material only or what ?