Phil's scope (28") will have just UNDER twice the light capture of a 20" scope like the Mary Rose.
If I get a 36" scope, this will have 3.25 times the light grab of a 20 inch scope, and 1.65 times the light grab of Phil's....
But then Phil will get a 50".
Not sure if I can afford to keep up with the Jones' (Townsend's)....
Go for it Rod.
I used to think my 12" was a decent size until the first time I brought it to a gathering. Its now just my "grab and go" scope.
Still, its not how big it is -but what you do with it that counts.