EDIT:
Just saw the feedback post here http://www.rscrevolution.com/viewtopic. … 032#p81032, linked to it and responded there too.  Ill keep this here for now, if an admin wants to combine or move this post onto my reply there that will work.

Since 61 staking seems to be getting back, would it be possible to make a new token or a new class to make (like DMM) that gives that account the ability to de-level lower than their max stat (like was discussed for having a Wild Pk build change).  Could even make this for others so they can switch between 33s and 61s and 70s and such without having to have multiple characters.

Would allow for a single character to test out multiple types of builds for staking to find what they like. 70-70-40, 60-40-79, 79-60-38 etc etc until you find one you like.
Would also get rid of the offset issue if you did quests to get some of the extra items that it caused you to level up more att/def/str (if it does more then +/-1 offset. - do the dragon slayer etc, and if you were 40-42-88-77 and accidentally got 1 extra attack to bump you to 62, you could reroll and it would set the xp values to default 40-40-88-77 for even 0 offset.

Could make it an in game token or npc you talk to, that you can buy from for 500k or so as a gold sink

It would be a two part token, first saves your levels you start at as the master value, so if 90-90-90-90 it keeps that, and then allows you to switch to say 40-1-50-46-61 ranged-1pray-1mag to be a 33.  You play around for a while (no xp gain) and once done you re-use the token, or re-talk to an npc and he will place you back at 90-90-90-90 at the same xp lvl you had and you can continue leveling.

Would not allow for changing 90-40-99 to 40-99-90 only lower than the highest value you have reached (so flats are the best as you have the highest values to worth with and can pick any level grouping for melee combat stats at least.

For pking, one complaint that was brought up was hp if you trained extra.  It should simply calculate hp based off att/def/str so for a level 63 40-1-99-99-31 pray if you trained the 90k rats give or take.  If someone leveled down to that same 40-1-99 31 pray, they would only be given 87 hp and be lvl 60.75.  They could do 52-1-99-87-31 pray to match lvl 63.75 but still have 12 less hp.

So either way, those who trained hp higher have the HP advantage

TL:DR
Make a token/npc that you pay 500k or so per use to store your highest combat stats that you can lower to whatever values you want (that match X level base stats, ie 40-1-99-87 for lvl 57 (auto adjusts hp values)) to make different spec stakers, different spec pkers, different level pkers, etc etc.