@Yetanotherdegree
Don't go by rules set by others. Time required for prep depends upon ur background, speed, aptitude everything. E.g. If you're an engineer/mathematician quant will be a breeze.
Best approach to optimize prep is first cursorily going through theory and taking a mock test, it will tell you exactly what and how much u need to study. In my first mock I got ~166 quant, ~148 verbal so I devoted my entire available time (1.5 months) to verbal. Targeted prep based on strong and weak point will help more than random problem solving, and only way to know SWOT is taking a mock..