Advice needed: AAWT Tharwa to Thredbo

Hi all,
I've just returned from the Overland track and I'm itching to get back out there, so I'm planning to walk the Tharwa to thredbo section of the aawt.
I have a fair idea of what will be required in terms of physical and mental stamina as well as all the supplies I need. However, I am not overly confident in my orienteering skills. I have chapmans book which I have studied, yet forum posts seem to indicate it is somewhat outdated.
How well marked is this section of the trail? I haven't found a definitive report on this recently. Some recent experience would be lovely.
Also my planned departure date will be in early February. The summer weather is of concern. I am tossing up between carrying 3 or 4 litres of water - I am not sure if the extra kilo or so and reduced space will warrant a need to carry the fourth litre.
Thank you.
I've just returned from the Overland track and I'm itching to get back out there, so I'm planning to walk the Tharwa to thredbo section of the aawt.
I have a fair idea of what will be required in terms of physical and mental stamina as well as all the supplies I need. However, I am not overly confident in my orienteering skills. I have chapmans book which I have studied, yet forum posts seem to indicate it is somewhat outdated.
How well marked is this section of the trail? I haven't found a definitive report on this recently. Some recent experience would be lovely.
Also my planned departure date will be in early February. The summer weather is of concern. I am tossing up between carrying 3 or 4 litres of water - I am not sure if the extra kilo or so and reduced space will warrant a need to carry the fourth litre.
Thank you.