I dont trade this, but..
Varunji had already said that he doesnt use 200 ema anymore. I think the gist of his system now is ...
http://www.traderji.com/commodities/100956-crude-oil-trading-181.html#post1220326
To be frank with you i am only using naked price and OBV charts because as they say old habits die hard. To add value, you can mark 3 or 4 levels on the OBV charts corresponding to the opening (10:01 AM) 1:00PM ( i think Europe opens around this time) One at 5:00 PM and one say at 8:00 PM. Just these lines as reference lines and you should be good. I donot use any indicators. Just pure price and Volume (OBV).
http://www.traderji.com/commodities/100956-crude-oil-trading-183.html#post1220405
wisp ji i had advocated the 200EMA and 36EMA method to people to get them started, but as discussed with Vijkris ji had shifted to the ribbon system as 200EMA used to give delayed signals. I have been using OBV charts nakedly it was just to give a reference point for others to initiate a trade i gave this method. Then to make it easier and for more early signals we graduated to PDC method. I use 36EMA to add and to trail my SL.
http://www.traderji.com/commodities/100956-crude-oil-trading-183.html#post1220421
i consider OBV as my primary source and price as my confirmation. So when OBV touches the 36EMA if i am long, then i keep a stop below the low pivot of price just before the touch and also add. So initially if i had bought say by the 200EMA method (which i don't use) then my SL was the low pivot of price below the 200EMA. Now that gets raised after it makes a touch at the 36EMA of OBV.
http://www.traderji.com/technical-analysis/103908-my-system-my-trades-379.html#post1220546