Thanks for the design. I'm not sure that the PB part of the logo is distinct enough, especially to be used on its own as a brand identifier. The font of the slogan is good. Overall colour scheme could perhaps benefit from more variety.
Thanks for the new designs, definitely a step forward. I wonder could the P and the B be separated so they can be the same colour (maybe just shade differences). The Personal Best ni.com could maybe work on two lines similar to the logo design submitted by another designer?