Spam Panic or Power Strike?

Why would power strike be stronger? It doesn't really make sense to me to be honest :confused:

Let's look at the average damage per fix hits. If you spam Panic, it's:
0 orb
1 orb
2 orb
3 orb
4 orb
Panic

I'm not completely sure how to calculate the damage done, but let's call the average of those value "P" *Panic Average. xP*

Now if we find the average of Spamming Power Strike, it would look like this:
0 orb
1 orb
2 orb
3 orb
4 orb
5 orb

Let's say the average for that is "N" *No-pani Average*

The Average damage Panic-Spamming does will not change, it will remain at the value of P. However, after each Power Strike, P will approach the Damage Boost of 5 Orbs + Power Strike, just like if you average the numbers 1-5, then keep adding 5 to it and re-calculating the average hit.

Average of 1~5 is 3.
Average of 1~5+5 is 3.3
Average of 1~5+5+5 is 3.57, and so forth. The same would apply to the damage, and it should pass-up Panic Spamming at some point. That point might be at Seven or Eight hits, or it might be at a thousand. :/

How2calc. Damage pls. xP