My 2 cents
Any tip harder than a standard hard leather tip that really doesn't compress upon impact with the cue ball (and absorb some of the power/energy) will generate the same amount of power. from here on it's all about the speed of the stroke and accuracy.
If the table is fast (newish cloth) and balls are clean and the rack it tight like with a template, than there is no need for a very powerful break shot. in fact, reducing speed and improving accuracy will generate a better break, better spread and better chance of pocketing balls.
I've been actually testing breaking with standard playing tips for better accuracy over power and it works pretty well, just try to break with your playing cue ans see for yourself.
So if you jump well with the White Diamond (and no reason why you shouldn't be) than just practice your break stroke and fundamentals.
I have a BK2 cue with a White Diamond tip on a Raven carbon break shaft, the original phenolic tip on the original BK2 shaft and a Samsara J/B tip on a Players J/B cue (wooden shaft), all weigh about the same and testing with the Predator break speed app, I'm getting the same speed with all, which means that for the particular cue weight I move all at the same speed and get the same break regardless of the tip.
