NGK LZFH (8710) Anyone tried these ?

Hey,
was going to buy some LD05F plug covers until i saw these on Ebay from UK now i am not sure what to go for,
Thanks.

I would first determine if your bike should use 5k ohm resistor spark plug caps. Ed

www.ngk.com/product.aspx?zpid=20070

Hi Ed,
Been using 5 k ohm caps /covers for at least the last 10 - 15 years - LBO5F which i have only just realised are for the bigger plugs, but they have always worked perfectly. A small oversight on my part - should have taken more notice at the time.LDO5F is of course the correct one.LO5FT were the originals.
FROM WORKSHOP MANUAL.
Is it the Coil resistance (350 - 540 ohms)
or winding resistance i need to find.
Primary - 2.61 - 3.19 ohms.
Secondary - 13.5 - 16.5 ohms.
Thanks, Mick.