nsp as a whole was pretty unstable.
but comparing a unstable team which is willing to talk about nation issues vs a useless one, i voted nsp.
but i felt tampines didn't want to rock the boat (by which doing nothing is an advantage), the area just completed/or is undergoing hdb hip, downtown line and interchange expansion, plus lky and sg50. so most willingly vote back pap.
interestingly, i felt pap didn't even try in tampines. i did not see or hear a pap trunk once, but the nsp one came around 4-5 times, even stopping in the carpark once.