Nee Soon camp still have shuttle service to the nearby MRT
stations? At worst, might as well experiment from AMK, Hougang or
any of the southern stations, even if it encompasses switching
between buses.
Yishun route can be slow due to the long Sembawang Road. It's one
of the thoroughfares to/from the northern HDB estates, has a number
of other camps dotting along it & the plying buses tend to be
trunk services. Perfect storm = longer waiting times, jam-packed
buses & traffic jams.