I would too. You can't blame the drill for slugs.
I agree totally, however what if for example the CS plot had a bigger problem than the 750a plot given similar pressure ? surely that data is useful and proves something ?
I have definitely seen very different levels of slug resistance over the years from, combi, vaderstad, claydon, back to vaderstad and now 750a use so there is no doubt in my mind that a drill can influence how big a problem slugs are