Do practice the touch and go casts, if for no other reason than the fact they are fun. They are also a bit more quiet and stealthy, especially where the fish may be holding close (assuming that the casts are going smoothly, of course). However, you certainly don’t need to use TnG casts ... Snap Ts and Doubles and Pokes will all work just fine too. Tahoe Joe does make a good point about there being a bit of adjusting when first using TnG casts, and/or casting with just a mono leader. It isn’t a hard adjustment, but some practice time with the set ups you wish to use beforehand will make it a lot less frustrating.
Cheers,
JB