Plan "A" was add third AOA tube to existing Pitot/Static.
Plan "B" was have AOA plumbing installed in wing, if it does not work well as per plan "A", then move plumbing of AOA (only) to plan "B" front of wing cover.
Evolution now includes a plan "C", (and "d"). Will install 3 aluminium tubes for plumbing, so if plan "A" fails, will just move "all" plumbing including beautiful 3 tube Pitot/Static/AOA to this front cover! (Will put a cover over Factory Pitot/Static hole.)
And of course when Plan "C" fails, will resort to plan "D", which is the same as plan "B", just with addition of wasted time implementing plan "C" and hence undoing it.
