I received my Maximus yesterday and was totally excited to try it out the first time. When I opened the package I was very skeptical, because it's alot smaller than the anal toys I'm used to(my favorite being the Doc Johnson inflatable vibrating plug). I lubed up good, and inserted it, relaxed for a little while and then started the contractions. I didn't feel much at first, but after a few minutes of slow, hard contractions I definitely felt it hitting the spot. I didn't come close to an orgasm, but it felt great, and precum was constantly oozing out. After about an hour I ended up masturbating while contracting hard and it was AWESOME. I'm going to keep practicing, and hopefully will get closer.
Great to hear you had such a good response the first time out, I think you'll get the hang of your Maximus in no time!