it seems then that entry into the UK with a Tier 1 isn't guaranteed and can be refused at the point of entry. Can those that have traveled on Tier 1 give their experiences, because if its not guaranteed entry i would rather not take the chance of getting turned away after i quit my job...I have dealt with in the past, a case where the IO revoked a tier 1 (general) visa as they were not satisfied they would continue to fulfill the role of a tier 1 migrant, and hence they submitted that the migrant should have applied and entered under a different category, e.g. a visitor or otherwise.
please help...