Hi homeworkisapotato!
Before you make your decision, I think you should consider your interests, the possible workload, and course prerequisites / what you might do for tertiary study. Following Plan 1 may bring a higher workload than Plan 2, but if you think you can handle it, absolutely go for it!

Having a seventh subject could be useful in case one of your other six don't go as planned, but having six can allow you to dedicate more time to your 1/2s in Year 11 and get a stronger foundation in them (which is useful for subjects like Chemistry and Methods).
It might be helpful to look at the
study designs and even some
past exams to see what a subject and its assessments are like for each one you haven't completely decided on. You can also check out the
VCE Subject Reviews and Ratings thread. Also, a chat with your careers advisor, your current teachers, teachers of the subjects you are considering, and/or your year level coordinator can be very helpful too as they know more about you than we do!

Regarding Latin and Specialist Maths, yes, the scaling brings your raw study score up considerably, but you can still get a high ATAR if you do any combination of subjects. It really helps to enjoy the subjects as you will probably be more motivated to study for them. Would you still pick them if scaling was non-existent?
Try not to get too caught up in the 'numbers' side of things because school should be about learning things that interest you, not what scores you get! You don't need to score 100% on every SAC to do well. Remember that you can get to that end goal, even if you don't end up on your desired path straight away.

Hope this helps. Good luck with your decision!
