eracingpro shafts

hi redshift...ahh i have the proline wide kit on my maxx, £60.00 when i bought it all those years ago (i think they discontinued it now) .
i got arms, shock towers and ti turnbukles (they've never bent or broken) despite the abuse in fact, neither have the arms or towers in 5 years of abuse.
so all i need is the hubs, bearings and shafts hmmmmmm alot to buy just to try a shaft, has anybody used these shafts with a mm combo?

would be soo sweet if they do last with brushless power as it would save alot of weight > 10 lb truck i will have,
thanks all...