TaylorMade R9 460 Shaft Options

[Wa Wo]

I recently bought a TM R9 460 Driver

- stock Aldila REAX 60 gram, regular flex

I tried it out the range, and I'm hitting it great. Balls just seems to jump off the club face.

I am concerned that with my swing speed (close to 100mph) that I may end up just snapping this shaft and that a stiffer shaft is likely better for my swing speed. I went to the local golf outlet here in town, and I was told that they no longer sell any R9 shafts, and that they did not carry the adapter for any other shaft options. So my quest led me to jump online and see what was out there.

Couple questions:

1) Is my worry legitimate of snapping the shaft? All the clubs in my bag are stiff, granted I only have one graphite shaft 5 wood. The rest are stainless steel.

2) There are many options to replace the shaft on eBay. Any suggestions here? I'm currently watching a fujikura motore 60 stiff and fujikura motore 65 stiff. Both have the adapter. Do I need to concern myself with anything else? Any other suggestions here? Trying to keep my options under $100.

3) Dexterity of the shaft: as I hit left, should I just assume all shafts are 'right' shafts unless otherwise indicated? Would the settings just be the opposite where 'L' would be 'R', Neutral would be Neutral Upright?

Thanks all for any insights to some or all of the above concerns.

[mvmac]

I think if you're hitting it good, stick with the R-flex.  Going to an S-flex would lower ball flight, take spin off.  Not going to "snap" it.

[Wa Wo]

I do find on missed shots, that the ball fades more-- though the trajectory would be lower, would a stiff flex hold the line better?