Maybe a house rule is in order....
- Physical] Adepts always get free PP up to Magic rating.
- Mystic Adepts always pay 5 Karma per PP up to Magic rating.
That's the idea, but another idea that I find makes more sense both fluffwise and mechanically is that it is 5 Karma per PP up to magic rating in chargen, and outside chargen the Karma cost is equal to the new rank. This makes is more like a skill or a knowledge, being cheaper at lower levels, and more costly later on.
But more complicated to explain. SR5 = simplicity.
What if i have 5 magic at chargen but only buy 3PP for 15 karma.
Will the 4th PP cost me 4PP after chargen...?
Then it would be better to not buy PP during chargen. Save 7 Karma and buy:
PP1 = 1 Karma
PP2 = 2 Karma
PP3 = 3 Karma
= total 6 Karma instead of 15 Karma during chargen....
Simplicity (such as always 5 Karma per PP or always free PP up to Magic rating) mean fewer loopholes and edge cases.
Ok, before I say my thoughts on the system, I want to just get something off my back that has been bothering me about what people are saying in SR5. That is the SR5=simplicity line I hear whenever someone wants to just go the simple route instead of fixing the problem properly. The dev diaries said they where trying to streamline Shadowrun, not overly simplify it. While SR5 is more simple then SR4, it is still one of the more complex RPGs, so a little karma cost scaling should be fine, especially given that is happens with almost eveything else where the number raises (knowledge skills, active skills, attributes, initiation grade, etc.).
In response to the excellent point you made, I have thought of that, but I was just showing what I had at the time from the other thread, while I tried to think up some way to fix that problem. I have two, outside of just leaving it as it is and saying that they're paying to have their PP early. .
The first would be to simply bring the karma cost to be the same in chargen, this is the worse of the two, because it would make it far too easy to start out with maxed out PP for little to no cost.
My personal preference goes to having karma cost 5 PP up until you try and upgrade to 6, then it goes to the system of costing the new rank, so it would go like this
PP1-5=5 Karma each
PP6=6 Karma
PP7=7 Karma
And so on.
This is the same in chargen, so if you where to try and buy the 6th PP, you would need to pay 6 karma. It is basically a linear learning pattern until you get to a certain point, then it starts gradually getting more and more difficult.