I'm not as studied as you on the matter. However I continue to study and I find more than myself find Longstreets and Hoods proposals feasible.
Below is taken by Terrence L. Salada and John D. Wedo. It is a very interesting read. Point is we all have our opinions.
Published opinions on General Longstreet's suggestion run the gamut. Tucker
writes that "Longstreet should not have been discredited for holding a contrary--and, as it
developed, a superior--view." (4) Harry W. Pfanz in Gettysburg: The Second Day writes
that it "made a lot of sense in the abstract." (5) Douglas Southall Freeman in Lee's
Lieutenants: A Study in Command Volume 3: Gettysburg to Appomattox refers to lack of
cavalry and "days of delay" in a move to the right; he proposes no route. (6) Jeffrey D.
Wert in General James Longstreet: The Confederacy's Most Controversial Soldier, A
Biography, writes, "Longstreet's proposal of a vague flank movement was impractical,
and Lee rightly dismissed it at the time." (7) Finally, Bowden and Ward call it Lee's
"worst choice." (8) One can guess that personal opinions are similar.
If anyone would like to read the intire essay it can be found at this link. I am enjoying the spirited posts of everyone involved.
http://generalmeadesociety.org/pdf/longstreet paper to meade soc aug 2012.pdf