It would not be comfortable. You need to ride with the sit bones on the wings of the saddle so move the saddle forward. If not possible with your current seat post- then look at an inline seat post that will move the saddle forward.

I found that on hills I was pushing forward on the saddle to get more effort in but I was literraly just perching on the saddle whenever I did this. I managed to move the saddle forward so that my knee is actually forward of the pedal crank which goes against normal setup but is the way I like it.