I'd rather know what I'm taking home. I'd opt for fixed pay over variable pay every day of the week and twice on Sundays.
Here Here!
Variable pay also has an impact when applying for a mortgage. Some banks take an average, some will ask to see your payslips for x number of months and take the lowest figure, some will just take a fraction of it.
Giving up the fixed flying pay is a big step in the wrong direction and will certainly affect those of us at the bottom of the pile IMHO. But hey ho, lets see what comes out in the wash when the votes have been cast.