Carbon or graphite rods. 1/8" is the size you need.
Castle Neu 1520 on 6S LiPo Powered Gmaxx (Nitro Killer)
Predator with OS .21TM
Supermaxx with Mach .26
Revo with OS .18TZ
Kyosho ST-RR Conversion
Ofna CR with Tekin ESC/Motor (2)
I use jdcarbon in mine and the hold up better than any of the titanium ones I have used. I have never been impressed with lunsford pins, they have always bent on me. I have no idea what grade of titanium they use either which has always bothered me.
I had lunsford on my crt .5 and they were light but V soft and bent after a few runs...
Lunsford even said they were softer than steel.
I had some carbon ones for the revo once but found that they wore pretty quickly and snapped. Swapped back to steel - I'm not sure the 1oz will make that difference really.