I'm noticing that when I bluff river for half pot or even 60%, it gets called way too often. Is the standard bluff size on the river supposed pot in most situations? I'll dig through my database and find some specific spots but my river play needs a lot of work and I think I'm missing the most opportunities when, for example, I miss my draw after double barreling and then bluff river for too small of a sizing. Or cbet flop, check check turn, and then again ... bluff too small small on river and get called with ace high or middle pair.