im wondering what the difference is between a nitro spinner with an aluminum backplate and and e-spinner with an aluminum backplate? both are made by Great Planes. i was using a nitro spinner w/backplate before but i managed to crack it and i had to order another one from the LHS. in the meantime i figured i could use the e-spinner seeing how it looks almost identical and was in stock. good idea or bad? please adivse!!!