I was in this same group, and the boss currently one-shots at 7:09 minutes into the fight. We ran the fight with a 2 Tank, 4 Dps, 2 Heal composition, and a 1 Tank, 5 DPS, 2 Heal composition, and the lowest we got the boss to was about 16%. The group consisted of 8 decently to very experienced Master Mode raiders, and we were unable to push it beyond 16% even with 5 DPS in Story Mode, as the one-shot mechanic seems unavoidable. The remainder of the fight definitely seems doable and survivable though, it's mainly only the boss's health that is proving to be a stopping point.

Great new event! After all the shoot-this, shoot-that stuff, this is like a breath of fresh air. So, to answer the questions: 1) Yes, this event is definitely fun. Loved trying to understand how it works and trying the 3 different races. 2) The races were of good length, definitely didn't end abruptly, neither did it feel too long or boring. 3) Yes, the objectives were clear, but for the Beks alone, i feel it would be better to use different markers for the firework stands and the exploding barrels. Sometimes get hard to differentiate while you're trying to race. 4) Loved the Horizon's Razor races, while Beks were my least favorite due to the number of objective that you need to keep your eyes peeled for. I would say reducing the number required to complete, or making them more like bonus missions would be better, but it's still enjoyable as of now. 5) Definitely, the different objectives made you focus on the course in a different way, adding a new flavor to them. 6) Staying on course was not an issue, but Onderon would benefit from a more enclosed route that isn't misleading. Also not a fan of the random mobs that you might aggro if you go a bit off the course there. (Tatooine, meanwhile, was more enjoyable despite the mobs, because you could easily avoid them. The number of trees in Onderon make it hard to do so.) 7) Bike abilities were plain and easy to understand, no criticism there. 8) Like everyone else mentioned, the bikes could be faster! I would like swoop racing to feel faster than just normal mount speeds. Might make staying on course challenging! 9) Enjoyed the most: The Time limit bonus mission was good, made me really want to do it quicker, and get it right on the first go. Felt like you were multi-tasking while trying to stay on target, and that was pretty cool! Disliked: It's not an actual race against anyone, Player or NPC. Would at least like a lap timing leaderboard for each gang! Overall, GREAT new event! Thanks a lot for this content, Devs, reminds me of the little things I enjoy about Star Wars. (On a not so relevant note, this is my first Forum post )

It's like every other event, you need to get to the Fleet and access the event terminal there. EDIT: Like the Dantooine Event, there is a floating terminal near the elevators on Fleet.