The Antigravity was one that did not explode and came out in a long way in front on most tests.
The others that did explode only did so during extremely severe testing, but it could happen.
What I meant to say was that these things are still in the development stage, and are improving rapidly.
If one explodes under test the manufacturer is surely going to find out why and fix it PDQ before he is sued out of business, so a six month old review probably isn't worth much.
Adelaide Hills, Australia. 93 R100 GS, 77 R75/7 ,70 BSA B44VS, , 86 R80 G/S PD, 95 BMW Funduro F650 ST