whats stiffer PX 6.0 or KBS X soft stepped once

[Kurtomac]

I have the KBS X flex soft stepped once in my Mizunos and just sold my 5-W I-15s today for what I paid for them and I'm looking to pick up another set of I-15s as I really liked them but I wanted to added a 4 iron and U wedge and get a set of them with a better shaft...the set I'm looking at buying on ebay has 4-PW basically new black dot with the Project X 6.0 non flighted with the Ping Tour W 52 and 60 with the AWT stiff flex
which is stiffer and which will launch higher/lower
PX 6.0 or KBS X flex Soft stepped once
thanks

[iacas]

I have the same shafts.

Project X 6.0 is around a 6.5 on the original scale they used to come out with their shafts prior to the PX.
KBS Tour X is about a 7.5 but it feels like it's a 7.0 or so. Soft step them once and you're at about a 7.2 to 7.0 with a feel of about a 6.7 to 6.5.

If you want to talk feel, a lot of people feel that the KBS is a softer feeling shaft in these configurations, but the actual numbers would tell you the KBS X SSx1 is the firmer shaft.

[Kurtomac]

OK I dont think I could have asked for a better answer...based on my swing would you recommend a 6.0, 5.5? or a KBS Stiff...honestly I feel my Tour X soft stepped once are a little firm for me....also dont get the most air on my longer irons...with that being said would you recommend a flighted shaft? or just stick with KBS? the AWT stiff that i was hitting had a nice ball flight on my low to mid irons maybe even a touch high on my shorts...my longer iron needed some extra height...They sell the Ping Anser forged irons here in my proshop (I live in Japan so I guess we get them in the stores before you guys) they come with the PX shafts and I get 10% off their sticker of 1150 and 10 bux a club mail in rebate for a military discount...thought about picking up a set of those but just not sure theyre worth the cash over a I15...sure are pretty though!