no no thats the per cell weight if you check under the battery column on the bottom left you can see the weight is proper ie 558 gms.
exactly but i dont want to risk damaging the motor shafts with the 12 inch prop!

Oops. I should have looked more carefully. Anyway, you won't damage your motor shaft. If anything, you will damage the windings. The HK website says these motors can handle 23 Amps for upto 10 seconds and the working current is 19A so it is your call.

true when I order the props ill first get some plastic ones of both sizes to check and then get the carbon fiber ones of whichever performs better 

so recieved another set of components
completed frame assembly, motor mounting, esc wiring with extensions, prop guards and power supply
waiting for the next set of parts to proceed 

That's a really nice looking hex  One tip I would like to share is to use Loctite Blue or Anabond blue on all the screws that have metal on metal contact such as the motor mounting screws, prop adapter screws and parts of the frame. Put just a drop on each screw and tighten it. This will prevent loosening due to vibrations. Make sure to use only a drop otherwise the screw will become practically welded and almost impossible to remove. I also saw this video on ESC customisation. It is a bit of a risky procedure but you might want to try for aesthetic reasons.

yes i read the thread gluing thing in the forums but what im worried is that iff the glue seeps in the screws could get really hard to remove in case i have to adjust or change anything. so ive decided to do that once the quad is ready tuned and perfectly flying
as for the esc customization, its far too risky with my level of soldering skills plus escs are already under the center plate and wiring is through the cf tube hence it is almost invisible

UPDATE:
Assembled everything with the naza m lite
8000mah 3s battery
2 axis gimbal etc
using the rcb7x on this one till i get something with more channels
ordered an fpv set from quadkopters and also have ordered fpv goggles.
will update once thats done.
it flies well and is very stable. havent measured flight time but it seems to be okay for now

Great job  I would love to see some flight videos