emerald skeleton substrate.

so i have a lovely emerald skeleton that is going to be requiring a new enclosure in the near future due to his dramatic size increase in the last few molts. anyways since its an obligate burrower i let him do as T's do and build his own burrower. for his lat 2 enclosures i put him in a 50/50 mix of cocofiber and topsoil.i didnt pack it down or anything though. now ive been seeing around the forums that you should pack down the substrate for burrowing T's. is this true? or am i fine with keeping the substrate loose? im wondering because of the rehousing of him and for getting future burrowing T's in the future.

I always pack the substrate