I am still wondering what makes the pcm to enter that urban mode.
The best route will be to make manual 1st to stay at first not to upshift to 3rd as stock is set.
I will add as much tables as I can to the universal patcher ls1 tableseek definition, so anyone with ls1 can benefit from them.
If you want to manually add the table to your xdf, here is the search string that will give you the MAX_GEAR table
38 * * B0 30 31 B0 @ @ @ @ 67 * 08 38
@ @ @ @ = start address of the table.
