RE: 14mz and jets ??
No issues at all,i must have had one of the first sets in the uk,used in all types of model from
park flyer to Bobcat,Flash,L39 Savex,most problems i see are down to poor install issues,
all stuffed in with wires loose and no logical planing .[:'(]
Just use common sense keep rec away from pumps,esu and keep turbine related wires
away from servo wires etc and you will be fine.