Pretty good idea. Another member recently mentioned writing down all the missed problems and going over them at a later time. I think just going over them after 25 problems would be good but I think going back a week our two later would show if you really retained the pattern.
I wish there was an easier way to do it though, rather than manually.
I've just written a blog post about how to use the Tactics Trainer in a better way, than simply bashing through the problems. It works great for me, so I hope others will find it useful as well.
Here it is: How to use the Tactics Trainer.
Let me know what you think.