Well, I made 2 points and you have talked about one of them. The first, that it is hard to get past 50, and the second, that you are achieving less due to game balance.
For the first, we have been told that skill gain is reverse exponential. You level fast at lower levels and slower higher up. I have seen footage of people at lower levels, but nothing high up, so all I can do is take the words of the devs when they say its a real hard grind. Which I think holds true to the idea of a soft cap anyway. It must be a significant difference going from 50 to 51 than 49 to 50 for it to be any kind of cap. But you seem to know(?) otherwise? Or are you simply basing this on your own logic/reasoning..? In which case I would like to hear it.
For the second point, if the game is balanced at level 50, it would generally mean your choices matter less afterwards, as the game is not getting any more difficult. Early on, and even up to level 50, the world will be noticeably progressing with you and so you need to keep up. This, imo, adds meaning to your choices. When the world no longer moves with you, there really is little point to branching out. All you will be doing is dealing with the same stuff but in a different way (which imo again, is better saved for another play through where its more distinct). I would rather see/think it is generally better to focus on builds that cope with the changing and advancing game world rather than those that plan to do this, then tack on a bunch of stuff after. I want to see what you are going to use to get to level 50, to move through the world. Not just all the perks you really really want.
Anyway, that is my reasons for wanting to see builds at or under the 49 limit. Each to their own of course!
I definitely cant argue with the second half, that's reasonable thought. It doesn't fit with my playstyle at all, therefore I suppose I kind of just glimpsed over it, but I admit it's a point to take into account. Also, knowing where you put your FIRST 49 points has some virtue of its own as priorization in a build matters just as much as the final state, so I can't fault your thread for that.
As for leveling, saying that difficulty above 50 is 'reverse exponential' is definitely a solid exaggeration. There are three things at play here and solely three: Within each individual skill, every point is slightly longer to grind than the previous one. Secondly, latter levels take a handful more skillups to achieve than lower levels, but this would be a "soft curve" effect rather than "exponential difficulty". And finally, there is a reasonable expectation from the devs that most players wont be striving to use every skill, especially those that conflict with their build (generally at least one weapon style and one armor type will be disregarded, but for many players certain other skills like pickpocketing may see little use, etc).
The sole mechanic that takes into account your overall level is the one that determines how many skillups you need to level;
your level never ever affects the time it takes to get a skill up, only how far you've progressed into a given skill affects how hard it is to get the next point, and therefore the leveling pace varies a little but there is definitely no point where it becomes frustratingly slow. In fact, given that the base rate of progression is so stupefyingly fast, as long as you are willing to play like a jack of all trades switching between playstyles regularly instead of playing to your strengths, you WILL get to 75 if you plan to explore most of the game content in a single playthrough.
That's really all I can share on the topic for now because I obviously havent had the chance to time things. Also like I said, my perception of what constitutes "super fast" may be colored by the fact I used mods to slow down my progression in both Morrowind and Oblivion, but still. I just wanted to get this off my chest, because the level 50 mantra softcap is quite overblown.
Still, there's virtue in knowing what you'll be getting -first- so I dont think its a waste of an exercise to pick 49 perks only. Do carry on
