Ordering a Shaft for the 910 H 21*

Is it too late to order the

TITLEIST DIAMAnA 'AHInA 90 (WHITE) 

stock stiff shaft for the 910 h 21*? I am trying weigh my options. I don't need a new club but I would definitely use this club if I had a stiffer shaft in it. The current shaft is weigh too flexible.

The concierges will have to check on inventory.  Another option is carefully searching used clubs with that shaft.  You can then swap shsfts and resell the old shaft and head or just the head.  I found 2 on e-bay for under $100.

Thanks Don! I am looking at a couple of stores with used clubs.