Thanks Silverback, I saw your post earlier in this thread. Although not actually goblet squats, I did try front squats instead. Getting the weight out in front of me allowed me to kep my feet flatter.
Are you able to squat all the way down, just your bodyweight, down into an ATG (ass to grass) position - a.k.a asian squat?
No. Well, I can a l m o s t do it when I put my arms straight out in front of me. Kinda the same thing as what I was saying above - the further out in front the weight is, the easier it is for me to keep my feet flat as I can bring my butt further back behind my feet.
I didn't realy think of it as being an ankle mobility issue, I thought it came from further up (i.e. hammys) - I could definitely work on increasing my ankle flexibility as I know that's not great either.
But I'm still wondering whether I should just keep working on my squat in its current form, or whether I should look for alternatives until I can keep my feet flat.
I can easily do 170kg for 12 reps on the 45 degree leg press. On the pure geometry, that should be a squat of over 100kg - but I'm only doing about half that. So I'm wondering, is the "up on the toes" just my style of squat - and should I just work on it as it is, slowly improving my ankle mobility?
Or like I said, should I stay away until I can do it "properly"?