that its more stable, or no disrespect meant ?

That it's more stable. My U1 miner has run for a month without a problem on cgminer at 2GHash.
Hi, i would like to get help running my U1 at 4GHz ... the code that i had was " --bmsc-freq 5381 " but it seems that the latest version of cgminer dont support this command... can anyone confirm this?

If so... how will i get 4 Ghs hashing from U1 Antminer?
GroundZero
That command only ever worked on a fork, not my official cgminer. Cgminer uses the much more intuitive actual frequency in MHz for its commands with the command
--anu-freq Set AntminerU1 frequency in MHz, range 125-500 (default: 200.0)
Note that unless you have hardware modified your U1 and have some way of providing it much more power than USB normally provides, there's no way it will give you 4Ghash, but if you somehow did, that would correspond with a frequency of 500MHz.