I actually switched to void + blowpipe and bgs, people from the clan told me that's the best way to do it, and I did notice a noteable difference. First 50kc was done with void + rcb (had no bgs yet).
For my first 10 or so kc I used barrows stuff but kills took a bit longer. You can see if you can pull it off:
You dont have void tho?
Also use the setup with pray ranged not mage. With a blowpipe you pray mage since you dont have anti-dragon shield.