If I remember correctly, 20776 was the stock map installed after 2013 on Roadsters. It replaced 20352 as the stock map. I think the only change was removal of the restrictions in several of the gears. I have a 2012 Roadster with Hanso's tune installed. My ride has TORs and a Ramair intake. Been running this tune for 70,000 kms with no issues. Installed it in 2014. Plugs are a perfect colour. Hanso sent me 2 versions of the 20355 (Triumph tune for Roadsters with TORS). They are both derestricted with one having 5% more fuel and the other 10%. I have only run the 5% extra tune todate. No issues with decel popping at all. I love slowing down through several gears using engine braking. I've provided both tunes as I received them.
My original reason for trying this tune was to get rid of decel popping and reduce a slight bog while accelerating mid throttle, probably due to the intake ducting removal.