your right about it being better to prove out the spider with a visual, if the spider is het, you will have a 50/50 shot of each egg being hypo, if the female is only het hypo then it drops your chances down to 25%, little bad luck and you might think hes not het hypo, when in reality it was just bad luck and he is.
what else you can do? well besides breeding it to a spider for lesserbees or a butter/lesser for BEL, there about close to 100 other morphs out there by now. you can make combos with all of them also.... lol