6UEST , you're absolutely right in your assessment .

However, one of the two things I don't sense 'right' (or raising some of my doubt) was about achieved angle readings in Camber .

Yes LF camber positive 0°15' and RF negative 0°15'(at border of limits) are both complying with specs .

Besides , the Cross Camber (LF minus RF) of positive 0°30' also is complying with specs .

However , the LF positive Camber in combination with RF negative Camber may or may not promote pulling left .

Considering our road crown is higher on the RHS slanting downwards towards the LHS of the road , this may further promote pulling left , or it may not ?

True enough after about a week of driving with the alignment angles , the vehicle quite consistently is pulling left on straight highway driving .

Further , it is annoying to me that this alignment job was incomplete as pointed out by you whereby the  Caster angle was not measured and displayed ......
which may or may not help to explain the pulling left .

Agree with you on toe readings , which are quite desirable .

For now, I'm a bit 'suspicious' on one aspect of the spec limits displayed though Toyota should have done extensive tests/research to come up with this limits .....

Sorry Bro just to update here , before the current alignment job the Avanza already had the camber bolts on both Front sides installed  . I only paid for labour only at RM30 , in Seremban though .

I suspect this set of camber bolt may have been installed 3.5 years ago when 2 front tyres were replaced new together with an alignment job then . Subsequent to that is the current alignment job we are deliberating today .

Agree with your position on positive Front camber as being not ideal , for on-road applications like my Avanza .

Here is some background and I would appreciate your patience :

1 )For the past one year or so , I have been feeling on cornering right at speed that the steering wheel was rather unsteady/unease/unstable  on approaching highway toll booth on exits , not realising something maybe wrong with my (probably highly positive) Left Front camber etc ;

2 )Realising there were some minor heel and toe wear on both front tyres ,made a visit to my mechanic who recommends replacement of sets of Front shock absorbers/lower arms/absorber links/tie rod ends and anti-roll bar bushes and Rear absorber sets .
This 'repair' job makes  taking right side cornering even worst than before.
Hence scheduling this alignment job .

3 )This current alignment result of Left Front camber of +ve 0° 15' is much better than before 'repair' on cornering into right side , although the steering wheel was still a bit unsteady/not firm at faster speed  .

4 )However, the Right Front camber of -ve 0° 15' gave me very firm and steady steering (which I like it) on making cornering into left on high speed .......
hence my current rumblings on the 'less than ideal' alignment readings , despite within specs and of green colour .

5 )Of course pulling left on straight highway driving further compound my annoyance of less steady cornering into RHS.

Thanks I would do some read up on coilovers with pillow ball top mounts . Any or what difference it has with a camber plate ?

Update :

Redo/readjust (foc) Front wheel alignment to :

Camber :
LF -0°20' (from +0°15') ;RF -0°15' (from -0°15')  ;

Toes :
LF +0°07' (from 0°00') ; RF +0°05' (from 0°00') .

Tyre pressure : remains same at 40 psi all round .

(Note :Sorry, miss to take pictures on computer screen . The tyreman flips the screen too fast .)

Pulling left phenomenon still remains , but much improved and better than before . 

Instead of swerving to fully occupying left lane in about 6-7 seconds after hands off steering wheel previously  , it takes a longer time now at around 10-12 seconds at 90 km/hr ....
but it is still obvious .

But now unfortunately one new problem crops out . Previously steering wheel is straight when driving straight ahead , but now steering wheel is leaning to right when driving straight ahead .    

Any comments , folks ?

Over-steer and Under-steer problems and its adjustments :

[attachmentid=10870222]

Source

My last known or pumped tyre pressures some 2 months ago were:
275 kpa Front

255 kpa Rear.

Any suggested tyre pressure values?

before weight reduction F270 R230 superb grippy easy control

after buang 3rd seat & spare taya, tend to understeer so F260 R270 is perfects.
the rest full ori never align wheel since bought