I'm guessing there will be a multitude of answers to this with the most popular one being "it depends on you". LOL
I'm planning on ordering a new Tall Tines recurve and have questions about the the riser vs. limb length. He's got two different riser lengths (I don't recall the actual length as I type this). I'd like a 62" bow but would easily get a 60". Brian said he likes to shoot a 62" bow with the longer riser and medium limbs. I think the longer riser can only go as short as 62" but it could be 60". He also has a short riser that can make a 58", 60" or 62" bow. I asked him about the difference between the two with regard to stacking and "smoothness". I have a 27 - 27.5" draw so I doubt I'll see any difference between either. He didn't seem to think there was much difference other than the site window.
I have to think about resale, too, since you never know what will happen and when you might have to sell it. I'm going to try both bows but, if I don't notice a difference, what would you do and why?
At your draw, 60" is plenty. Typically a longer limb/shorter riser will be a little smoother, but again, I doubt you'd notice.
With that grip the bow stands vertical for me so sight window is more critical. The short riser works fine for me. I shoot split , but have a higher anchor. The 60" was smooth to 29" but the 62 is even better. I don't think at under 28 draw you will notice much difference.
I agree with kbetts.