How to get more for your gems
I found out by plotting some data on an xy chart in an excel spreadsheet that there is a good strategy to get more for your gems when fast forwarding your TF upgrades.
I found that the progression is not linear. It is parabolic. Meaning that each gem you spent in shorter fast forwards can fast forward less time than each gem spent in a longer fast forward.
So here's what you do:
Save up your gems, and spend as many as possible per fast forward. You will maximize how much time gets fast forwarded, and your gems will get you more :)
Be patient! it will pay off in the long run!
Here is my data, Hope it helps!
Gems = Gem cost to fast forward
Time = Total Time in minutes left to upgrade TF
Days = Days left to upgrade
Hours = Hours left to upgrade
Minutes = Minutes left to upgrade.
Gems Time Days Hours Minutes MinutesPerGemSpent
500 3600 2 12 0 7.200
467 3240 2 6 0 6.938
456 3120 2 4 0 6.842
434 2880 2 0 0 6.636
389 2400 1 16 0 6.170
356 2040 1 10 0 5.730
334 1800 1 6 0 5.389
295 1414 0 23 34 4.793
265 1258 0 20 58 4.747
252 1196 0 19 56 4.746
231 1086 0 18 6 4.701
173 791 0 13 11 4.572
162 734 0 12 14 4.531
151 681 0 11 21 4.510
137 609 0 10 9 4.445
114 493 0 8 13 4.325
110 471 0 7 51 4.282
66 247 0 4 7 3.742
52 180 0 3 0 3.462
25 71 0 1 11 2.840
6 13 0 0 13 2.167
1 1 0 0 1 1.000