DonM These are very specific shafts. You cannot just buy an R flex, if you normally use R flex. You must be fitted, by someone that knows the shaft. I read a lot on other forums/sites, that have stated this. And they are always trying to resell them. But prospective buyers are warned by others, of the 'one size does not fit all', with these shafts.
Besides that....imo...it's a bunch of bullshit! 🤣
Save your money. There is a new shaft coming to market, hopefully before Spring. You will love it!! 👍
And it will be nowhere near that pricing.