No more erection!!!

i am wondering why i dont get erections anymore when using the aneros? the very first few times i used the mgx (9 months ago), i immediately got hard and stayed that way for awhile. now, as i am inching towards the super-o with PCs, etc., no more hard-ons! also, i dont seem to produce anywhere near the amount of pre-cum that i initially did. it seems that as my focus has changed "inwardly" to producing a super-o, my cock has completely been removed from the picture. is this natural?

i get plenty of voluntaries. have been to and stayed on the edge many times. cant seem to get over it though. i would love to figure out how to get my cock back into the loop again. thanks for any fedback.