ok keep in mind, if you have a shallow handle ,, like a bendy, you may not pull a 28 inch arrow,, just saying,,
keep the limbs wide, narrow the handel a bit, bendy handle and you should be able to get the 28 inches,,
Mad Max,, it depends on how far you need to bend it,,
25 or 26 would be good,, no need to strain it to the max unless you just cant shoot a shorter draw,,