There is really no way to guarentee a good pheno unless it is a clone from a grower that can tell you if its good or not any time you go from seeds you can get undesirable phenos what I would do is start a indoor grow that you can do some genetic testing and get a good mom for all your future grows that is the only full proof way of knowing what your growing. I have spent a lot of time with genetics that just didn't cut it and it is frustrating to have a beatiful plant with no real problems that does wierd shit by the time you find out your a couple of months in but what can you do