The good news about braked turns is that they are easy to do, and are now covered in the ISP. To do a braked turn, go to about half brakes (or whatever brake setting gives you minimum descent rate, just before a stall.) Then let one toggle up a little bit. This will allow the canopy to turn while descending very slowly. To stop the turn, bring that toggle back down to the same position. Now you are back at minimum descent rate. Try this a few times above 1000 feet to get a feel for how it works. Practice turning exactly 90 and then stopping on heading.