I have trouble w keeping the im70 in place too. the only tips that managed to keep them in place is a triple flange. even w comply, they come loose if I talk or eat(open jaw). However, I did find that doing something opposite of the usual helps keep them in place-usually after inserting the tips the standard practice is to turn the iem towards the back of the ear to lock them in place. but for the im70, I dothe opposite, after insertion instead of twisting backwards I twist them forward towards the front. at least for me the comply stays in place. (but am sticking to the triple flange as they are more secure and doesn't muffle the mids like the complys do.