99 wc took me 13 days and I made 25m in the process, so technically could have been a lot less. 10 hours + a day.
Been a month and a half now since I got 99, no ban.
Ah Wha!?!?!! 13 days doing....what? lol ive been doing it for.. around that and im at 90 D:
Im pretty sure you cant get woodcutting 99 in 2 days...
Woodcutting sorc garden thieve, cook, and construction can be done in 1-2 days if u have the money ive heard

