Trainer dilemma!

[hilaryisinked]

So last night was the first night in GroVia trainers. Or at least I thought. A few minutes after she got in bed she was complaining they were too tight. She's tiny; almost 3 & 27 lbs but they were leaving marks on her. They are super hard to stuff. I put a flat in there and the pocket is SO narrow I could hardly get it in. So now to use these at night I'm going to need to order Plus size panels and something smaller to stuff with like Joey Bunz. Or I could just order some Super Undies from Nicki's Diapers and use the GroVia trainers in the car. WWYD? She has never peed in her car seat but I'm always nervous she will. I feel like using these trainers then and getting different ones for nights would be good but then I'm spending a lot more money. However, $8 for two pairs of panels plus another like $12 for Joey Bunz...it's not saving me that much more to just order some Super Undies. What do you think?