Cheapest, Yet Speediest BL Combo for the E-Savage?

[rawfuls]

No racing on this end. Mainly bashing.
I do speed runs sometimes... Not often, about twice a run. And a speed run, is about 50m for me.

Then it's to the grass, and dirt. (I have this small weird 'garden', well not really, it's mostly weed, growing right on the line of my neighbor and I lawns... I sometimes just try and get through all the weeds, and the roses that pop up out of no where; more like rose stumps)