I have a CZ P-09, I have tried Gunzilla CLP, Ballistol Gunex and G96 Liquid Synthetic Grease. In my subjective opinion I find the grease works the best, I use a designated fine tip brush or q-tip to spread the grease on the slide and frame rails.
Just like @Ravage I find the grease tends to stick around longer. After every range trip I usually have to reapply oil to the slide & frame rails (typically I use between 100-300 rounds a trip), I find that with the grease it isn't always necessary to do so (in my opinion). However neither the CLP or the Ballistol ever gave me any issues, so it that's what you have and you don't want to buy grease than I think you'll be just fine. After using all 3 I just have a preference for the grease and I will likely try the Slip 2000 next as recommend above.