i've always struggled to get top to bottom prints, my first cheap Chinese press was pretty awful and a slightly better Chinese one from bms a bit better but generally i need to leave at the very min 5mm to be safe. i use truprint paper and mugs were bms ones at first then cheap signprintz from ebay.
ive seen pics of mugs with full length prints, is there a trick to this, is it even possible with a mug press?