how tall & heavy are you? I actually have both a 184 mounted +2, and a 191 mounted +3 Im 6'3 and 230ish lbs, and they actually both let me drive the shovel, the 184 lets me do like an easy 50-55mph really carving, and you can flex the ski into different turn shapes.
As a general thought I would say +4 is not a problem and just do, I can measure the sidecut on bench quick if anyone is interested
The carbon tip shovels are kinda weird, because it will let you closer to 60mph without flapping. They look soooo thin and flimsy, but.. are awesome, they will also let you do nose butters with fairly good support and energy. imho more skis should be made like this, traditionally I've not been a huge fan of just throwing carbon on skis as it makes them kinda weird, but here they really really figured it out.
Moving binding forward does make it a bit squirly where its 100% flat like the last few meters to lift, of course tune is a thing, and height/weight is a thing, as it happens more on 184 than 191 for me. The tune is fairly aggresive, and tips can be a bit hooky when doing spinny stuff stock, but try the ski before detuniung anything.
I even got a pair for my GF for x-mas, so I currently house 3 x 102FR :p and I SO wanna get a pair of the new pink 191cm, put duke PTs' on them and go even more forward. like +4 or +5
@Greg_K got me on them last year, and I feel they are the most slept on ski in ages, ironicly it seems the new pink and more blue topsheets are makeing them popular and more people are discovering them, I think they won freerides.se review like 1-2? years now etc. Here in europe its very hard to get hold of the pink ones now, and stores carrying both will have the pink one at 50 euro more :p
I grabbed both my pairs for like 300 euros I think, so pre-pink topsheet and older years with less blue topsheets are an absolute steal.
I think against the revolt 104 the 102FR will be more chargy and higher speed limit, guessing by 5-10-15mph? but the revolt is what -1,5? -1.75 mounted and as light with less carbon so yeah. But they do have some of the same feel. I only have like 8? days of park on the revolt 104s though, looking forward to carve them on our local black run
I own a lot of skis, but when I was only allowed to take 1 I grabbed the 102FR, 191cm, that kinda says a lot.