I understand where you are coming from. I assume with my hypothetical question that you would not recommend recusing Carlson if your client was charged with a felony assault  on a gay man. Reasonable minds might disagree with your position. But if your test is as you say: whether the judge gets reversed a lot on denying suppression motions or for other errors and more than his peers, then I expect you would not be trying many cases in Carlson's court since his record for reversals was far more than any other judge during his tenure trying criminal and domestic cases. But since such refusals are so opaque as you suggested how would anyone know your reasons? You may have the last word. I have concluded.