Hey guys, I need some advice. So I've been in contact with a PI from DAAD RISE in Germany. If you don't know, the way DAAD works is you submit your application to the program, as well as cover letters for 3 different projects you are interested in. The PhD students who submitted the project review the application, some will interview, and eventually submit their student rankings to DAAD, where the matching process occurs based on rankings, and other factors like GPA. The PI I have been in contact with said he would be willing to put my name on the top of list and offer me an additional 1500 euros, but only if I would be willing to commit. However, I am still waiting to hear from some other summer programs that I think I would rather attend. I don't want to tell the PI that I can commit when I'm still not 100% sure. But, at the same time, I don't want to say no, and then not get into the other programs. The rankings need to be submitted to DAAD by tomorrow mid-day German time, and I emailed my top choice program for an expedited response but I have not heard back from them. I'm probably going to email the PI tonight or tomorrow morning with an official answer, do you guys have any advice on how I should handle the situation.