I've been watching the development of the Gun GSR's the last couple of years and then demoing the 2016s I decided to order the new 2017s 5.6, 6.3, 7.1, 7.8.So far I've used the 2017s 7.1 and 7.8 a couple of times each.The sails look and feel great on the water, good stability, rotation and easy rigging/derigging.The quality on these sails is awesome and backed with a 2 years warranty on Sails and Mast, definitely worth considering when looking for your next slalom sail. I'm using the Gun select 100% SDM for 6.3-7.8 and Loft RDM 400 for the 5.6 which I love as I don't need to buy an extra mast . The 6.3 can also rig on SDM or RDM when the RDM kit is purchased.
. The 6.3 can also rig on SDM or RDM when the RDM kit is purchased. 
