I'm going to try a couple of the ODO-99's but with Tower/Great Planes being the exclusive distributor, a $6 EACH price tag and NO quantity discounts these things need to be **** near bullet proof before I order a bunch..... :blink:
Don, you will not be disapointed. I must say I have only tested them on .21 but you will never reach temps with bigger engines like I do with .21.
Last year at the record trials I've burned (melted) a glowplug every single run in total over 20 plugs, they all came back with no element left or blown on top. I used MC#9, Novarossi #7, K&B HP and 1L. Novarossi was the best of the bunch. Since then I switched to O'Donnell, I'm running engine as hard as ever, in fact last weekend engine sized 4-5 times from overheating but glowplug was still fine. They sure work great for me.