re: standard - CSThe only difference that i saw on Horizions web site was to add 2 pieces of 20 mm fuel tubing to the middle 41mm standoffs . The tubing should be pressed on until there is 8mm left hanging off . Then use 4 3x12 socket head bolts to secure the canopy to the heli . One thing I installed was thumb screw caps that go over the 3x12 head bolts this way you do not need any tools to remove the canopy . here is a link but i forgot what I paid :
http://www.ronlund.com/Merchant2/me...&Category_Code=
