Where did that come from, CEM? rcahill's response was squarely within the parameters of the original post, which asked whether a stiffer boot would help or hinder the OP as he learns to ski bumps and trees:
Originally Posted by LTCold
I want to know if going to a 120 flex boot can improve my skiing? I can easily ski groomed eastern blacks but not bumps or glades, which I want to learn this winter.
(highlighting is mine)
If anything, the whole "fitter vs. puncher" discussion is the tangent. A welcome one, judging from the OP's further comments, but a tangent nonetheless.
So to return to the question...
LTCold: You say that you think the 90-flex Heads may be too soft for you, because they're easy to bend. That sounds to me -- a layperson, not a bootfitter -- like going stiffer might be a very good idea. But even assuming that the manufacturers are using the same scale, a 90 to 120 jump is huge. It's the difference between a boot marketed to advanced intermediates who get a few weekends a year, and a boot marketed to advanced, technical, and highly dedicated skiers.
The people I see on 120s are usually either under 30 or ex-racers, and all of them get a minimum of 40 days a year. I don't know any 65-year-olds who are trying to expand their horizons and improve. Kudos to you.
I'm 41, 6'1", and 200 pounds. I made a jump last year from a Tecnica Rival RX with an 80 or 90 flex rating to a Dalbello Proton 10 with a 100 flex. I opted to go with the Proton 10 rather than the 120-flex Proton 12 because when I patrol, I'm in my boots for 10 hours straight. But even that relatively small numeric difference was seriously noticeable.
I'd echo the advice to talk to your fitter intensively about specific boots that will work well with your feet and desires, and include in that discussion the possibility that if you go stiff, you may need to soften them sooner than later.