I'm trying to joint some 1 x 8 poplar on my router table so I can glue up
a panel. Each piece is 36" long. I have the out-feed fence 1/16" proud of
the in-feed fence.

I understand that you are supposed to keep pressure on the out-feed fence
but I can't seem to keep even pressure as I move the board along. At 36"
long I have to move my hands and when I do, I get a bump in the jointed
edge. I tried to clamp 2 feather boards to the table on the out-feed side,
but I'm still getting 2-3 bumps on the jointed edge because of hand
movement.

Neither fence nor the table is long enough to use push paddles for the
entire 36". Is that part of the problem?

Is there any way to get rid of the bumps so I can do a gap free glue-up?