the zip seems fairly solid and so far has no problems. about half the field is part of rock creek park, a part of the national park system. they likewise will give you little long-term benefit, and may well harm your account’s standing. take one piece of the dough and shape it into a round then roll it between the fingers of each hand, keeping your hands flat, to form a fairly smooth round ball (this should only take about 10 seconds or so) then do the same with the remaining pieces of dough. 