I also though so years ago and then just placed a small square just the size of the ignition on the bottom of it using foam to prevent the vibrations.

And still the same problem persists.. after those 115-30 flights they stop working be it in the air while performing aerobatics or even after landing .. after those flights have bpassed its a lotery when it will go..
I allways carry 1 brand new ignition with me in my field box.. because everytime this happens.. i try turning the motor on again and nothing happens or it just sputters trying to turn on but dies..

I place the brand new ignition and instantly it turns on with no problems at all.. It's extremely frustrating not to mention becoming quite expensive..

I've been flying for quite over 20 yrs and since i switched to gas engines this is a constant problem.. With glow if the engine stuttered i switched the glow , maybe fine tune the needle a bit and was back in the air. but with this I quite honesly don't know what's going on.