Iam shooting a widow psrv, which is cut too center not past, Iam shooting a 29'draw at 47# split finger, it shoots 2018 great cut too 30" bop with 175 Grains up front, which come in at about 575 I would like too get down too about 500 or close, was thinking about a 2016 cut too 291/2, any thoughts , thanks jbuck

Are you trying to gain speed?

A 29.5" 2016 with a 125 grain point will be in the neighborhood of 480 grains.  Your bow should shoot that arrow well.

In my opinion your 2018's are too stiff.  So with weaker shaft your on the right track.

Thanks guys,
Yes Rusty Iam trying too gain a little speed, Iam not a speed junky but just a tad too slow with shooting a 47#er with a 575 grain arrow, thanks jbuck