I spoke to the mnagement earlier in the week/last few days about this very question. My take on the reply was basically a full size ie 40mm plus kill zone that is the hole through which the pellet can go to knock down the target can have 50% obscured. The question I asked was could the central 20mm be obscured leaving 10mm either side the answer I think was yes. However the obstruction must be substantial and ensure following shooters had no advantage from previous shooters who had shot through and destroyed any earlier obstruction.
Andy
Buxted HFT Garage Guns are Us. Home of Crowzilla Doppers doughnut corner and SiHFT winners 2007 2008 2009 2010 2017 2018 2019.