Would love to acquire by summer 2015: Tandem that will fit my almost-4-foot daughter who just turned 6. She's pretty tall for her age and has been riding a tow-behind WeeHoo (50-pound towable + 54-pound kid... ugh). Will consider all models. PM or email me... lovenewsjh at gmail. Figured some of your kids may have outgrown them by now. Thanks!