Can't disagree with that, its always good to have a plan B, C,...
The real key to keeping everyone safe, in this context (flying into the worlds busiest airport) is to have everyone on the same page, following the same procedure, flying the same route and the same speed. Unless an emergency dictates otherwise, this ain't the time to ad-lib it.
But that's just one clown's opinion
If this were a military operation that's how it would be. But since it is a civilian operation, the safest plan is to try to comply with the NOTAM but hang loose and be ready to make adjustments as required to keep things safe.
The very slow Cub scenario is for real, at least it was for me between Fisk and 36L, couple years ago. The pink shirt at Fisk said the usual, "RV rock your wings" and then "fly east for 36, monitor tower and follow the airplane ahead".
Well, the airplane ahead was a pretty yellow Cub and the closure on him was like right now, the guy had really slowed up. That's where guys trying to comply with the NOTAM get into trouble - they slow up, stall out, crash and burn.
As a regular thing, I don't stall out, crash and burn so there were two options, make a right turn and fly back to Ripon, or pass the guy and go on in and land - which is what happened. Not in accordance with the NOTAM but it was a safe operation, probably safer than going back to Ripon as I was on the ground and off the runway before the Cub arrived and not dodging airplanes at Ripon and Fisk one more time.
The point here is, some guys plan this arrival as if it were a military operation thinking it will go as the NOTAM says. Most of the time it does, but the pilot has to be loose to make adjustments because sometimes it isn't according to the script.
The high approach at 135 knots is typical where that traffic mixes with 1800' traffic on the way to the runway. Two years ago, also between Fisk and 36, a formation of RV's, I think there were 12 of them, descended from 2300' on the way to the airport after I was cleared in from 1800'. It wasn't long and I felt like the lady instructor in TORA-TORA when the Japanese flew through her flight lesson on their way to bomb Pearl Harbor. The pink shirts on the ground cleared the group arrival to land and when they broke right to spread out for a left turn in, I did likewise and followed tail end Charlie to the runway.
Like I say, hang loose. Stuff happens.
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