Thank you very much for playing, and for the valuable feedback! :D
Oh yes, that is certainly a pretty good score!! The higher the streak, the faster the calls come in.. so at your streak of 48, it will be Hectic! :D Which explains the sudden time interval drop you are seeing; once the streak is reset to 0, the call intervals resets too. Perhaps the call interval should be dependant on other factors too, not just the streak.
Not having to click on each socket would certainly save precious time, when things get hairy.
Yes easy mode with the faces shown is a great suggestion.
Thank so very much for the input, I shall improve for next time! :D