Is there Any way of removing the polyfill and replace it with blue bonded filter marineland ? I've gone back to carts after replacing w/blue bonded filter WOW THE DIFFERENCE IS AMAZING ..I was like omg, this is the real flavor intended, and it was eluding me being told cartos are more convenient (its almost as good as direct dripping which i do with VG, PG's too runny....... but perfect with a modded whistle tip cart) ....regular cartomizers for me ruin the flavor ......using ego Mega 900mAh battery using 2.8-3.0 ohm's vaporkings boge cartos are what im using? So, how do i mod out my cartos w/foam, has anyone tried ?? The post above me says it'd be complicated ? Thanks in advance.