As far as the nose touching the string goes-
I guess it could depend on how long your nose is
-lol!
Anyhow, from what I've personally seen with my own bows and been told, the Mathews come a little long on DL and the bowtechs are at AMO standard. I'm not sure if the Mathews are set at Amo standard DL or not, but with my 29" draw Mathews my 28.5" arrow at full draw would have the insert sitting next to the burger holes on the riser. On my 29" draw bowtechs, that same arrows insert sits at the front of the riser.
I know the risers,grips and burger holes are not identacle, but there pretty darn close.
With my 29" draw Mighty-mite I felt cramped up, but with the grip removed on my 29" stalker it feels just right. Funny what a quarter inch will do for ya!