your thoughts about ELP sequence 1-9

Hi Sem, I was wondering, based on what I've posted about, below, with regard to me mixing up ELP and T 1-9...Since I'm now ready to start on a new water 5 galon water jug, is it best to go ahead 1-9, as genrally suggested, or, considering my partner and I both tested (only) for ELP 6 and 7 of the series 1-9, should I start with 6?

thanks for your thought,
Chiron