My longbow is pretty fast and it is center cut. I think I tend to overdraw to the 28.5" area then settle back down to about 27.5" - 27.75", but I prefer a 29" arrow when using broadheads. I figure I draw somewhere around 58# but I plan on getting an FF string and from what I hear, you should figure in another 10# - 15# when considering spine when using an FF string. I'm considering probably 2020 or maybe 2117, but I wasn't really sure what would be the better choice for hunting, if a 2020 would be heavy enough/have enough K.E. I don't know much in this area.