Sorry DT....was at the kingdom and not on the board much....
I have been using the same sram XX 10 speed, no clutch DR since 2010....same type, I have killed 2 in 8 years. Unless my chain/cogs are worn, I have no issues with chain drop. In fact I used to have issues when it was 2x10, but after I switch to 1x10 in 2013, very very rare unless the drivetrain has a ton of wear. But I also do things to help it not fall off...Like say bombing the long downhill at mooch....I dont leave the bike in a high gear and give the chain any opportunity to bounce around.
Im sure i would like an xx1 set up...But dam thats a TON of money to spend, add more weight when I hardly ever even use my 36T on my scalpel in a race.