There is no difference at all other than that you have requested the SR22 filing. An SR22 Form is proof of Financial Responsibility for the State that you are now in compliance with the states Financial Responsibility Laws.
An SR22 filing is usually required due to a drivers having already demonstrated that they have failed to comply with the states auto insurance requirement, meaning that they have already been ticketed for no insurance.
The SR22 is required to prevent your license from being suspended or to re-instate it after a suspension. It may or may not be a high risk driver requiring the SR22 Filing. Most companies add no points against you because of the SR22. Points however may be added due to the actual ticket or violation that prompted the SR22 requirement in the first place but not for the SR22 itself. Some companies will impose a one time servicing or maintainance fee for filing the form. An SR22 filing requirement in and of itself in no way effects whether a driver is more likely to have an accidental loss.
Deb