I'm not using that configuration at the moment. I'm using an MFJ-993B. It has two power and tuning ranges. On 150 watt scale, it tunes 64:1. On 300, it's 32:1. I'm testing it out.
All you need to do is throw a 10 watt carrier and do a tune. Once your memories are built up, SSB peaks will instantly tune. Or, you can just throw a carrier and do it.