Depends how stiff the coating and how soft the bottom. If the bottom is very silty and the lead is sinking in a fair bit when it hits the bottom, the hooklink will stick up and presentation will be rubbish! Best thing is to feel if the lead is 'plugged' in when pulling back after the cast. If it is, then a more supple hooklink would be advisable.
There are quite a few coated braids that are very supple anyway. Korda soft hybrid and also Jellywire is quite soft and probabaly get away with it on a softer bottom. Another little tip if you are using PVA sticks or bags over the hook is once you have cast out and the rig has hit the bottom, carefully pull it back slightly to straighten everything out. DONT do this if its weedy or quite choddy.