Hi there,looking to get my first mech tube mod.It won't be my first mech,but all I have used before are various mechanical squonk box mods.My question is ,in the tube mod ,should I put the battery positive up or down?I'm looking at getting the geekvape tsunami kit,which only has venting holes on the bottom.It also has the insulated inside piece ,so putting the battery positive down seems like it would be safer,no?I've only ever put the positive down in my squonkers so I'm not really sure which way I should on this one.