Have a watch at the video a few time's then give your replies guy's
My personal take on this incident is.... Its good you left it a few days Bob thats something I always struggled with until i woke up
but anyhoo the incident itself, I've watched this literally 50 times from all angle's, I've asked opinion's from Sean and I can see both side's to this incident, here we go....
Bob, the entry to the chicane was spot on, left loads of room and carried that on until the next turn, at this point Bob closes the door obviously thinking Nelson had backed out as at this point he would be unsighted of Nelson's car moving forward into the turns.
Nelson like Bob takes the entry nice and tight leaving plenty of room, inbetween turn's becomes a decision do you stay in there hoping Bob know's your there or do you back out and fall behind and wait for another opportunity, watching from all angle's to me it looks like Nelson expects Bob to know he's there and they would attempt to take the next turns side by side.
my conclusion would be that there's a racing incident in here that is hard to apportion any blame to either guy, Bob rightly think's he is past and closes the door, Nelson think's Bob knows hes there and keeps the car there to go side by side through the turn's. There's 2 ways this can be avoided in future, either Nelson lifts and fall's in behind or Bob leaves some room for both to go through together, In this exact situation my opinion would be that the easiest and safest course of action would be that Nelson back's out, it's too much of a risk to go through those turn's in the hope that the other guy knows your there.
This in my opinion isn't a huge incident but obviously had dire consequences to Bobs race and frame of mind to continue, what i will say is Bob you did the right thing in waiting but you know yourself nobody in this league intentionally sets out to ruin anyones race, incidents happen and they always feel massive when we are involved in them but everyone has the same goals, close respectfull racing, you know you love it