Okay, well in flight its works great. After yoyo's, the lines sit nicely against the roll bars and it flyes like that. I can still steer it and go into multiple rolls without getting caught on the wingtip. I attached it to the TE with a small hole punch then put the sail clip in there. Then, for the LE I used the existing fitting. The actual bar itself is 2mm fibreglass. But, if you dont want to put a hole in your kite, you can use the holes already there for the standoffs but I'm not sure the angle will be right.
I recommend this mod to anyone with an E3.
I bought all the spars and fittings from a place called Kitepower.
If you need any more pics or have and questions just ask