lots of misinfo being said in this thread. I would love to see video of someone anyone really skidding in really thick wet snow....
Heavy snow, I love heavy snow.
First equipment matters normal sidecut skis, with min rocker and lots of sidecut are bear in heavy snow no matter the equipment. The ideal ski is a fully rockered, VERY stiff ski, with minimal sidecut or even reverse sidecut(think DPS138 or 4frnt Raven.) Also good luck using the sidecut on a reverse sidecut ski to make turn, you are going to use some sort of active rotary and that is entirely ok.
Tactics generally in all snow conditions tail following the tip is great rule of thumb. This doesnt mean carving and this does nt mean skidding, it just means that generally speaking you are going to point your ski where you want to go, and you are going to GO there. To take the concept one step further our skis turn us(via are manipulation of the ski via the boot interface), I know I said we use "active" rotary up above but in a great sense we actually actively resist that rotary being generated by the ski/snow interaction, and use that resistance to shape a turn. In fact in many way people try to do "Too much' especially while the skis are on the snow.
Another tactic if you are unable to generate a turn via ski/snow resistance is to hop out and redirect the skis in mid air. To do this requires the skier has the ability to load up a ski to generate pop, a strong blocking pole plant with properly worn pole strap, and knows to move down the hill and not up. Again good hop turn are always done 100 percent offensive with go to movements.
Do you have any video of you skiing? A video of short turn done anywhere even a blue groomer will make it clear if you possess the skills to be able to ski heavy powder.