Never tried tapers, but my Shelton seems to like 55-60 parallel shaft cedars. I don't think I draw 28" with a Hill style, but my bow is 54# @ 28" so it probably comes out about the same.
At 29.5" and 145 grains, you'll probably be looking at a 2016 or 2018. You could also use one of the fatter aluminums too. I like the skinnier ones, so I haven't experimented with the 21s or 22s. The newer Eastons are spine rated rather than size. I just picked up a dozen 500 spine Gamegetters for $35 bucks on sale at Dick's Sporting Goods. I haven't tried them yet though. The chart on the back of the carton shows those should work for you as well with up to 150 grains up front of a 29.5" shaft. A lot will depend on how close to center your bow is cut though.