I tried terries in pocket nappies, am quite disatisifed with the results. Hard to wedge the terry in, tend to promote leaks, terries just aren't absorbent enough for their bulk. People go on and on about hemp & microfibre for pocket nappies, instead.
I second whoever said start with terries until baby hits the midi-sizes, then try a sample of different shaped nappies. I am also skeptical about birth-to-potty idea.
You can buy the old snugglenap wraps & wedge terries (or muslin clothes, or small prefolds) into them, let's you use your existing terries like shaped nappies.
Having switched from terries to shaped, I am pretty happy with Ella's House bumhuggers, though I have to boost them to be sure they'll go 4-5 hours. TotsBots are perenial favourites, too.
Dunno what wraps you used before, but Motherease wraps worked out well for both my terries & the bumhuggers. I use old rags as liners, myself; you can cut up an old fleece sweatshirt & presto, instant free washable liners!