Having trouble with involuntaries

Hello all, I’ve been trying to use my aneros toys for quite some time now (a number of months) and have yet to get any consistent form of involuntary contractions, I was hoping to see if I could reach out and get as many methods as possible for triggering them before I have my next session, does anybody have any ideas for me? I’ve tried rhythmic clenching into relaxing, which just stops, no involuntary contractions, same thing with rhythmic into light tension, it causes a trembling feeling briefly, but I can’t maintain this and it doesn’t really feel like anything ‘inside’, I only feel it on the muscle that is trembling.

Unable to get Involuntary contractions with toy?

I got my Aneros Classic back in August, and have tried the Peridise as well as Trident Maximus since then, and with any of the three toys, I have tried Relaxing and doing nothing, Light constant contractions, medium constant contractions, and heavy constant contractions, as well as contracting for a few minutes then relaxing, but using any of these, I get no involuntary contractions.

Recently I have been getting something that I think might be similar to them however, but they never occur when a toy is in, they occur when I am trying to go to sleep, and are like a twitching/vibrating of the anus.

Is there anything I can try to get these contractions to happen with a toy?