I've got a 49@28 Toelke Lynx coming that i draw about 28.5"  i like my arrows about 30.5".  What shaft would you start with of you wanted to run a 175gr. Head?  I'm thinking 2117 or 2018, does that sound about right?

The 2018 should be close.The 2117 would probably require a little more point weight,possibly 200 grs.

How To section is a spine chart for aluminum.

I shoot 2016s given those parameters.  I find a 2016 will shoot out of every bow I own--47-55#@28. I cut them 29 1/2 back of point and normally use 145 grain points on them.

2016 is what you need I would say

I have the same bow and draw 28".when I shoot aluminum  they are 2018. 29 1/2" to b o p ,200grain heads.They fly great

2016s .53@28 shafts are 29in wit 145-175 shoot well

2018 would be my choice over 2117. I shoot 29", 2114's out of my 46 to 53 pound long bows. With that said I prefer to hunt with 55-59 woodies.

Depend the sight window cut (+1/8,center cut,-1/8,-3/16 ,etc..) ,string material(dacron,FF)

Depends on where the bow is cut to and whether you got ff on it.  If the bow is cut to center and no ff, 2016.

Bow is cut to center with ff, 2016-2018

Cut past center no ff, 2018-2117

cut past center and ff, 2117

God Bless

I would thing the 2117 would be better if you want to leave it that long and still use the 175 grain point.

I agree with all the others - try some 2016s.  Those Easton 500 Game Getters are pretty reasonable.  So are the 400s (2117s).

I use a 31.5" 2117 with 175 points out of my 50# Martin Hunter. They fly pretty good, but any shorter and they'd be stiff.

2016

2016, gamegetter 500s actually, are looking pretty good with 175gr. Points.  Just to dang windy to do any real tuning done.

I would recommend 2018.

Yep 2016's good spine for that weight bow.