Seems a bit too long when 945 / 947 are already doing the job at
West Ave 2/4/5, and a merger is not suitable either. I think can
cut at Bt Gombak MRT plus a loop around Bt Batok Rd. So like
this:
(943)
In addition to this feeder, BB West area should have about 1-2
trunk services to link to nearby towns (Jurong East / CCK / Bt
Panjang / Tengah). Some considerations are as follows:
(928)
(180)
(New service to Tengah)
(New / amended service for better link to Jurong East)
Other existing services mostly stay as they are.
Actually I did consider looping at BB Rd, but it will increase
travelling time to BB MRT/Int.
The whole point of my route not looping around BB Rd was to give
residents a choice between BB and Bt Gombak MRTs.
Ah, but my amended route would still give the residents that
choice, isn't it? They simply have to walk to the other side of the
estate served by 943. Otherwise 928 is still there to take them to
either BB or CCK. 
It's not a particularly significant point of contention ... I
simply suggested it this way to minimize route duplication between
928 and 943. And also to provide 180 some coverage of this part of
the town.