Tour 1 spiked up to 19000 kills. Back then there were hardly ANY players, compared to what we have. It then dropped to between 8000 and 15000 until tour 10 or so, then it jumped radically, averaging 25000 kills, spiking in tour 12 to 39000 kills.
"F4U-1C has 39515 Kills of All models
All models have 29451 Kills of F4U-1C"
Tour 16 is when they perked it, apparently, because at 16 it drops to about 8000 and it averages around there for most of the tours afterwards.
So even in the freak spike up to 39000 kills the chog in its day when it was getting 25% of all the kills in the ENTIRE arena was still getting less kills than the spit16 is now.
Consider that the average at peak time for chog was about 25000 or so, that's nearly been doubled by the spit16.
Okay I just did a check of tour 12 kills and added it up. It comes to roughly 224,000 kills total. Of that the chog got roughly 40,000 (and this was PEAK, highest the chog got by far), which means at best the chog (which disrupted the arena to the point of being PERKED) only had 20% of the kills there. If we go back to 25,000 average for the chog (counting tour 12 as a fluke) then it's down to a mere 10%, which the spit16 has surpassed at this point.