run/walk breaking point?

i was just wondering if there is a breaking point for a necro's (or any class for that matter) faster run walk because i have about 35 small 5% faster run/walk charms, some ik boots that have 40% fr/w, mav's belt that has 20% fr/w, and trangs armor that has 40% fr/w... the reason i am asking is because i dont notice a difference when i take off trangs and mav's.
if u dont feel like doing the math that is 275% faster run walk
and i am hoping that there is a breaking point so that i can use some small life charms

THere are no break points but there are diminishing returns. Each small frw small charm that you add has less of an effect than the one before it.

trangs armor over time still gives you less r/w because 'chaos armor' is 10 speed which is applied after dimishing returns, its a crappy armor anyways

the best armor for you would be a 'stealth' runeword
25% Faster Casting Rate
25% Faster Hit Recovery
25% Faster run/walk speed
-3 magical damage taken
+15% Mana Regeneration Rate
+30% Poison Resistance
+15% Maximum Stamina
+6 Dexterity

tal-eth armor 2 socket armor use it in a leather/archon/wyrhmhide armor (armors that are light-)

one of the best all around caster armors in the game comparable to viper magi- but non teleporting (sorc) casters need r/w-

ok since my r/w charms are "diminished". about how many can i take out to replace with small life charms?

Up to you, just make sure you don't take out too many that you become a target for melee characters. A necro can tank better than a zon because he can always have maxed dr and block. However, he needs more faster run/walk than a zon because he can't leech back, as a zon can, so he really can't get hit much.

i believe you can only get 125% r/w from items, any more then that does nothing. but then you can use charms that will count