I have a 62" 55@28 Brack Quest that I pull 26.5 I'm thinking of playing with some carbons, but don't know what spine to start with. I'm thinking the CE 90's?

Rich

The 90s or 150s should get close.
Gold Tip 3555 will also be in range if cut that short.

I think CE 90's would be a good choice,the new ones now are 30.5" long and shoot and tune from there.

GrizzlyStik Sitkas.  Great shooting arrows with 75 gr insert up front and 125 gr point.  And they pack a punch to boot!

Bill

I have a 49# @ 26" RER XR and I'm shooting GrizzlyStik Sitkas out of mine... the arrows cut down to 28", with a 75 gr brass insert, a 50 gr brass weight, and 125 gr broadhead give me good arrow flight, and an overall arrow weight of just under 540 grains.  I don't know what speed I'm getting out of it, but they sure do fly nice.

Tim,

The Sitkas are the best flying arrow I've ever shot out of a bow.  They fly straight and they fly flat out to 20 yards.  I'm looking forward to having a 125 gr single bevel broadhead on the front end of them this fall.

Bill