I just bought a whole bunch of gemfan 8" props for my suppo 2810 motors, only to find out that the shafts on the stock prop adapters are 6mm and the prop holes are 5mm and no way am i going to spend the next 15 years reaming out all the props i've got. i searched for 4mm - 5mm prop adapters and couldn't find them, either. so: who makes an 8" prop with a 6mm or or larger hole? i'm hoping for a quality prop but not a graupner-priced quality prop. something along the lines of the gemfan carbon/nylon mixes at 4 / $6 or $8 would be swell. Thanks!