^ I tend to sit toward the rear of the saddle, and I can tell that, for me, that would still have me sliding forward. That puts more weight on your arms, which quickly becomes fatiguing.
It’s hard for me to imagine that the nose can’t come up more. What kind of seatpost is it? Sometimes you have to loosen them quite a bit and give the saddle a firm jiggle to free up the clamp.
Some people do like the position you have, but I can’t understand it. Most folks prefer a neutral position so you don’t have that sliding off feeling. If you go too far the other direction, you will get numbness in your unmentionables. Not a good idea.