E-bike Thumb Throttle replacement

I broke 2 throttles in a month riding my sondors x fat ebike. i opened the casing and set to work reverse designing. it works as is, however, the magnet protrudes a little bit from the original which causes enough friction to stop the spring from returning to zero position freely. i actually don't mind as it creates a cruise control effect. Note* this is made to install on the left side of the handlebars, if your original doesn't look like the 'scooter throttle' picture, it probably won't work. *Update* I added another file titled v2, the spring moves freely in this version to get the oem fit after some sanding of the interior and exterior rings. im still using v1 and actually prefer it, but i can see it being a bit of a hazard, so added v2. i also beefed up the connection a bit