I'd like to see a hybrid solomining pool, where you get your fee for running the pool, the block finder gets 50% and the rest is distributed to the other miners.
Im with P2P on that, 50% to block finder and distribute rest, plus your .5% plus the usual donation from block finder lol.
If you put half your hashrate in a solo pool and half in a pplns pool then over the (very) long term you achieve the same thing and I suspect the vast majority of miners wouldn't want that scheme you're requesting (though I could be wrong.)