Id invest the weight youve lost in extra battery cells if I were you. At 24v with 5:1 ratio the astroflight should give no load of around 3200rpm to the disc/bar - but at a push you should be able to run 4:1 giving 4000rpm or more - this is probably closer to the ratio used by scorpion jr at the moment. Currently I guess your getting about 3000rpm from the undervolted EV so you should see an increased KE with on your existing bars/discs at 4:1/5:1 ratio. As you dont want to fry your Astro, dont run it at 2:1 ratio like Ive done before

If youve got the weight to spare you should stick more weight into the weapon - but only if youve got enough weight after youve packed in a few more weapon battery cells. Ive seen microchip with the big long steel bar with hammer shaped bits on the end - I presume youve not had the weight to use this much but now perhaps you could use that? (is there any more weight you could take out of the ali base?)

From our bout at Norwich I think theres a big modification you should try to make with the height of the weapon bar/disc. Currently its right at the top of the axle but it should be quite easy to mount the astroflight upside-down in the middle of the chassis so that its possible to put the bar right down to the ground - maybe 2cm over the ground actually.