Ok, one of my favorite topics! As primoz has described well there are some significant differences in the men's and womens fis GS skis, much more than the radius (30 v 35) and length (188 v 195) would suggest!. In car terms it is a bit like comparing a 911 gt3 to a dodge charger hellfire. ( and this must be a first, relating the 911 to the womens version!) One is a more finely honed precision tool while the other can be just as fast but more of a muscle car, requiring different inputs and more manhandling. If you watch WC you will see the differences in technique and approach required between men and women. The men require a lot more power to drive the ski and you see a lot of stivots and inside ski stepping going on. With the women you see a much smoother arc and, while it was apparent in some of the early iterations of the 188/30, you see very little ski lifting now. I advise my athletes to watch the women to see how to improve.
I have a personal theory that @35m we have gone just beyond the sweet spot for men's GS and that has driven the change next year to 30m while the women also remain @30 m. Perhaps because 30ish is really the sweet spot for a real GS ski. Now also consider that in the previous generation of >27m. Most of the WC men were on a 191/193 31-32m ski. And with some of the lessons learned from the >35m ski such as early rise incorporated, I suspect we will see very similar dimensions next year.
Now in the current generation the men's ski, as primoz points out, is built much stiffer and takes a lot more power and muscling to make it come round. The women's fis ski though, has really benefitted from the R&D, proportionatelymore so than the men's version. The tip flex in particular is such that it can actually be bent into the turn much more easily, and with the small amount of tip rise they also all incorporate, they hook up and turn in waaay better than was initially thought from the nominal radius.
Now, for Masters skiers this becomes a huge plus. A masters GS will normally be set at a "proper" 23-30m, with good speed. It is NOT a nastar type set. So, with the women's FIS ski the flex is such that most of us, even old f&&arts like myself can actually bend the tip of the ski, without being able to bench press 500#!, rather than fight against the bigger 35m ski. And, while having a useable flex they still have great torsional rigidity = edgehold , and stability at speed . The other aspect I have identified is that, in the chop below the gate, they ride much better and make it easier to get that early switch rather than fighting the ruts. And while they are perfect for me at 165#, they seem to work equally well for guys @ 200#.
So, for me, and with my coaching and racer hat on,( and IMHO,) the women's FIS 188/30 is a great choice for any serious masters racer. And I have put my money where my mouth is in this case and have been racing successfully on them for the last 2seasons. Along the way I got a lot of flak from some coaches that I have a huge respect for, telling me I should be on a 23m or "masters" ski . However towards the end of last season, I started to see a few more masters ( apart from my mt rose guys) trying them out. And, funnily enough they were starting to see why I liked them... so this season I expect to see a lot more FW masters on them (damn, there goes my advantage!)
Wrt the mounting point, most of these skis have predrilled plates and I have normally set them maybe 1/4-1/2 inch ahead of mark which is where I like them (I am in a small boot, 285 Bsl) and keep coming back to that after some playing about so have not seen any need to move the plates. I reckon Tina and Michela have a lot more leg strength than me anyway!
So,back to my regular refrain - try the 30m skis, don't be afraid of the radius! If you are required to or good enough to use the 35m ski, you are at a level that you already get good coaching input ! And, look on the bright side, after this season you don't need to use them!
In full disclosure, I have not spent a lot of time on the 35mskis and I would not pretend to be as skilled, knowledgeable or strong skier as Primoz - who I have a huge respect for and am absolutely delighted to see him here at Pugski! - so I can well understand how he can use the 35 m ski more effectively for his purposes. I do however have a couple of pairs of 195/35m head RD GS to play about with this year so will update when I get the chance to use them. Will be interesting and I suspect I may like them for free skiing but not so much in gates! However, I will try to give some more informed views on them as, at the end of this season, there will be a LOT of them being dumped rREALLY cheap as the FIS regs change.....