How will having 3 sections affect the scoring? Is there a way to recalculate what the score of my PT tests would have been if it was an LSAT flex? If LR is my strength should I consider pushing back the test date until it is in-person 4 sections again?

For the last month I have been taking a full length PT test every week, blind reviewing and drilling in between. My scores have been fluctuating dramatically. In January my diagnostic score was a 155. Last week after months of studying I was so happy to score a 164 (blind review 167). Then I took another test yesterday and scored a 155 (blind review 158). I'm taking them under the same testing conditions each time. I'm getting really frustrated with this test. Currently registered for the June flex and feel like my score will end up being a total surprise, for better or, more likely, worse. Does anyone have suggestions or has experienced a similar thing?