Barry,
My first CZ was a P-01. A few months later, I bought a used 75 BD.
My intention was to carry the P-01, and use the BD as a "fun gun" to modify and maybe shoot in IDPA. I like the BD so much I carry it sometimes too.
Although the BD isn't excessively heavy, the P-01 is definitely lighter and you'll notice the difference, especially if you want to carry it all day. If you're used to the BD, the P-01 will have similar feeling controls, and working the slide will be the same.
You'd think the P-01 would not be as pleasant to shoot, but it is. I'm not sure why, but the P-01 is very easy to control. It must be balanced well is all I can figure.
I have different hammer, sights and springs on the BD versus the P-01, so the trigger pulls are different on mine. I think they were pretty similar before doing the modifications.
If you have specific questions, let us have them. Don't know if I helped much.