I am part of a large group (6) going through Spry this week and was thinking of ways to quicken our pace due to the shorter daylight times this time of year. My question is regarding the first rap, the long 165ish ft slab. I was thinking of connecting two 200ft ropes with an EDK, then adding a Stone knot (below the EDK), then sending down two at a time, then the last two clean the Stone and simul-rap. This would be the only rap we simul on, given its length and the fact its on an angled slab. I've used the Stone before for simul-rapping. I've used the EDK before for single rapping. But never used an EDK for a simul rap and wondering if I'd be pushing the limits of its strength on this particular rappel?