Todd Pattist wrote:

Robert Ehrlich wrote:

It seems obvious, with a little thinking, that both cases
are possible, no need to do the experience, just think of
it at 2 extreme cases.

But one extreme case is starting at stall speed for the
heavy glider and depends on the stall speed differential. I
think everyone agrees that's a possibility, but it's not an
answer to the legitimate question of what happens in a real
pullup.
Todd Pattist - "WH" Ventus C
(Remove DONTSPAMME from address to email reply.)

From the extreme cases it seems obvious that there somewhere
in the speed range where both are equal. Below that speed the
lighter glider wins, above that speed the heavier wins. My
conviction is that the speed usually used for low passes
and pullups is in the upper range, but some calculation and/or
experimentation is needed to confirm this.