I am going to explain the basic of risk concept in an easy format.
Lets say we have two stocks  stock A , Stock B ,, 
Stock A is in the NEWS( lets say the company  finds tons of Gold in Peckham )
Stock B  has a technical reason to move..
Lets say stock A moves $2 and stock B only moves $1 ? which one  you should have been trading ? Which one would give you more profit?
ANSWER= IT DEPENDS ON YOUR POS SIZE (  .. If i buy 1000 shares of Stock B would give me exactly the same of profit as 500 shares of stock A) .. simple easy peasy 
hence the statment more momentun is more profit = nonesence
Now lets me go further.
SO if they both return the same amount why should not we be trading the momentum then ?
Answers= First of all youare all Technical traders and as a technical trader you should be trading technical MOVES and  NOT momentum moves but this factor is not all that important. 
Now I take you to the concept of risk,,
if i tell you  lets rub a bank and we make  £1 million  profit or alternatively we could use our intelligence and do BUSINESS with bank and over  12 month we would make exactly the same amount.. which one would you go for ?
Of  course, you might decide to rub the bank as it is much faster and shorter period to gain the £1 million profit  but what about the risk ?
IN WALL STREET , fund managers  talk about RISK ,, RISK RISK RISK   and as a result THEY  PLAN  A RISK ADJUSTED RETURN STRATEGY ..
We as a daytrader should do exactly the same . A RISK ADJUSTED PLAN ..
RISK in TA is defined by Volatility ... Volatility is the root of all  evils.. VOLATILITY must be tamed  for trading , if you cannot tame it then you must meausre it and hence design a trading plan to  include the  UNIT OF RISK PER UNIT OF RETURN PRIOR TO TAKING THE POSTIONS,
You have two choices,, 
you can use HISTORICAL evidence of volatility ( ATR )  to meaure RISK ( you cannot  correctly do that on momentum trading because NEWS HAS JUST HIT THE STOCK TO DAY AND A STOCK WHICH WAS ONLY MOVING FEW CENTS YESTERDAY IT IS MOVING $$$ TO DAY )
Or you can use a PROJECTERED Volatilty model such as CSV model ( compounded stochastic volatility ) to  measure the inherent risk of the current moves with in specific time frame.
Either way YOU MUST meaure it objectively..  ,, It is dead simple and  yuou  need not to involve yourselvess with complicated stuffs.  WEEEEEEEEE. ( Read about ATR on web .. simple enough stuff for any trader with even minimal of math education ) 
Once you measure it then you can adjust your position size accoringly to fit the volatility of the stocks u are trading . 
Now that you have read this text and understood the basics of postion sizing then you know why MR CHART  taking 800 Postion for two different stocks with two different volatilty  could not be correct and he refused to reply to my question .
Readers of this POST must think twice on momentum trading.. Momentum trading is just like EARNING REPORT,S TRADING,, FLAMMEABLE  and on top of that they ACT MUCH MUCH LESS TECHNICALLY  than a stock which is not in the news and moves based on the  technical MERITS.
You are all techncial trader ,, Stay as one 
Grey1