UM,
Well - lets see what your geletain funnel looks like if you take the same cal,weight bullet and swap it out for a soft point HP.
I have no clue where your comin from with apples,bat,my 10" chest

and the same spot,angle,slug,weight,design delivering more pass thru energy than the same retained slug - that has properly expanded - expended and released its energy inside the animals vitals or bone structure.
Hey - I'm just talkin decades of field experiance.
BTW - There are hunters out there that do not buy into the "Pass Thru" theory.
Back to the Lightfields - Great Slugs.I don't currently use them but always carry a few along with some Federals.These 2 slugs always seem to be consitant in any slug slinger I've used.Good slugs to give to a huntin buddy that might be short one day.They both get the job done.
Look at pass thru like this.Would you rather have a small heart lung pass thru from a dime shaped slug or a soft nose HP slug that went in expanded to the size of quarter and destroyed the Heart Lungs.Dear drops in 20-25 yrds.The pass thru runs ?????? yrds. I lost a very nice Buck 12yrs ago to a "Tidal Marsh" on a pass thru shot where deer bled like a stuck hog.He went at least 150-200yrds into marsh before the marsh ate up his blood trail.Hek with the pass thru theorys.