<p>no wait. </p>
<p>First you have to realize that its the summer and profs can be pretty bad at replying during the regular school year let alone the summer. Many of them are in vacation or are not answering any emails that are not urgent. </p>
<p>Second the time between emails should be decent and not excessive. Email them sometime early september and then again right before classes start but not more than that. </p>
<p>Third be prepared to go to their office if all else fails. My advisor is a great guy but he’s absolutely awful when it comes to emails. Maybe approach them after their class or just knock on their door randomly (hell I’ve done that before). </p>
<p>For the most part profs are pretty nice people and will tell you upfront if you ask them. </p>
<p>Good luck!</p>