i think i even scrambled my self up in my sentences lol.
in basic what im trying to find out is if im able to put the same lvl 50 glads Melee
in my gamblers cut and my sting of the wasp and still get the same effects or do they not stack>?
sorry for confusion 
Look at the sets.
For example: http://wiki.cohtitan.com/wiki/Gladiator%27s_Strike
If the enhancements say "Unique", then one enhancement (and thus one set) per build.
If not, then you can have up to five of each set bonus per build, regardless of whether it comes from one set or another with a different name.
Example: If six completely different sets (1 hold, 2 melee damage, 1 stun and 2 ranged blast) each give "+5% movement speed", then slotting all of them will only give +25% movement speed, not 30%.
If those six sets give +3%, +3%, +1%, +5% and +5%, then you get +17% (sum of all, because they are different.)
AKA: "The Rule of Five".
Why would you want the most powerful sets anyway? Isn't the point of PvP "The Challenge"? 
thanks this helps alot its not for pvp for wat u guys think its more of a pissing contest with my 5 roomates
Well, good luck with that.
If you ever decide you don't need those PVP IO's, you can sell a couple sets of those for a boatload of $Inf (You already knew that) and fully IO multiple builds with some pretty good non-purple sets.
Now go on and teach those roomies a lesson!
i have a question so far ive been farming my but off to slot up my pvp char i made, i wish to know if like for instance is there a stacking penalty. since all my melee sets can take Melee pvp's will it all stack if i buy all the same lvl 50 ones?
thank you for your time and efforts!