Upgrading from fingers, would mgx be better than helix?

I like prostate playing, but untill now I’ve only used my fingers. I’ve never went too far massaging the prostate, what really opened a new word to me was laying on my stomach “hitting” the prostate with the thumb or simulating a sort of vibration.

Now I want to byy my first aneros, I’ve decided for the trident version instead of the syn one, but I’m still evaluating if mgx trident would be better than helix, since I read that mgx allows more movement the thelix. On the other hand, I’ve also read that mgx trident may be too short, and as a tall guy I fear that it wouldn’t fit well myself. What are your suggestions?