Contacting PoI for MS Issues. Any help?

[budgiepie]

I'm having a very difficult time getting any response out of PoIs at programs I'm applying to. I understand they're busy but it worries me since time is running out and I need to be accepted into a lab in order to have a chance at acceptance at any of the schools I'm applying to.

 

I've gone with the very short email route and waiting a few weeks before retrying to email. I give a 1-2 setence introduction and 2 sentences of interest. I don't want to write anything longer since I know they're super busy. I know I lack research experience and am naive about research overall, so I don't want to waste space with excess flattery or vague connections between their topic and what I do have some experience wtih.

 

One very interesting PoI I've contacted twice 4mo apart and still hasn't responded, I'm not sure if I should bother with a third and final attempt at contact.  For the others I've waited couple of weeks to months and still haven't gotten a response.

 

Any further ideas or help appreciated.