Sensitivity of Class SH to Prepayments Assumed Price 6.18750%* PSA Prepayment Assumption Rates LIBOR 100% 275% 350% 550% 4.13125% ........................................ 32.1% 32.1% 32.1% 27.6% 5.13125% ........................................ 11.8% 11.8% 11.8% 5.4% 6.13125% ........................................            (11.7)%        (11.7)%         (11.7)%        (19.8)% 6.70000% and above .................... ** ** ** ** Sensitivity of Class SI to Prepayments Assumed Price 6.00000%* PSA Prepayment Assumption Rates LIBOR 100% 275% 350% 550% 4.13125%  ........................................ 32.7% 32.7% 32.7% 28.2% 5.13125%  ........................................ 11.8% 11.8% 11.8% 5.3% 6.13125%  ........................................   (12.7)%   (12.7)%   (12.7)%   (20.8)% 6.65000% and above .................... ** ** ** ** Sensitivity of Class SJ to Prepayments Assumed Price 112.12500%* PSA Prepayment Assumption Rates LIBOR 100% 275% 350% 550% 4.13125%  ........................................ 12.5% 12.5% 12.5% 12.0% 5.13125%  ........................................ 6.9% 6.9% 6.9% 6.3% 6.13125%  ........................................ 1.3% 1.3% 1.3% 0.8% 6.70000% and above ....................   (1.8)%   (1.8)%   (1.8)%   (2.3)% Sensitivity of Class TI to Prepayments Assumed Price 0.18750%* PSA Prepayment Assumption Rates LIBOR 100% 275% 350% 550% 6.65000% and below .................... 13.5% 13.5% 13.5% 7.3% 6.67500%  ........................................   (4.9)%   (4.9)%   (4.9)%   (12.8)% 6.70000% and above .................... ** ** ** ** * The price does not include accrued interest. Accrued interest has been added to the price in calculating the yields set forth in the table. **  Indicates that investors will suffer a loss of virtually all of their investment. S-26