To Jean Luc
if checking 64 bit, and save.work file 1 gb and found in 6 min

 ./kangaroo -winfo save.work
Kangaroo v1.5
Loading: save.work
Version   : 0
DP bits   : 8
Start     : 0
Stop      : FFFFFFFFFFFFFFF
Key       : 034B7DBF84F4AF9B9E5B9C15EEDE9C671FF5194FAF5290CE61DF4D2396A9FF22F0
Count     : 8657043456 2^33.011
Time      : 05:44
DP Size   : 518.0/654.0MB
DP Count  : 16908283 2^24.011
HT Max    : 105 [@ 035B51]
HT Min    : 31 [@ 03A140]
HT Avg    : 64.50
HT SDev   : 8.02
Kangaroos : 4194304 2^22.000

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if some tool change pubkey inside save.work, and this save work recalculate within all his record, how much time its take to find changed pubkey for same 64 bit