The story points can be used for estimate user stories and tasks will be marked in hours in Visual Studios.
When there is a critical bug (which is not in the backlog, reported by users) we incorporate to the current sprint and try to resolve it within the current sprint.
In doing so, we have to make adjustments to tasks or other issues, which,in turn will probably end up in a future sprint.
Now when we want to estimate for the critical issues reported (on TFS), we can enter the effort in hours. But, this does not display in the charts and nor it is counted. I figured that, if I was to monitor the effort for bugs, I have to create them as tasks and then only I can monitor on the charts.
My question, is do you recommend this approach or is it there something that I am doing wrong?