Hello, I believe I have narrowed my ball machine search down to the SP Star or the SP Rival. I'm looking for advice from owners of either ball machine or anyone else with input. I'm a 5.0-5.5 teenage homeschooler. my plan this winter is to drill on a ball machine for 1-2 hours early in the morning, doing crosscourts and dtl on both sides maybe like 200 each stroke both ways as if I were rallying with a person. I would like to do short balls and some patterns as well, volley work, some movement drills with resistance tools and then I'll hit serves. Then in the afternoon i will do fitness and match play. How much does it help having the remote and electronic height, spin etc? also can these models fit into a small cars backseat or trunk? Thanks in advance! I'm very open to other ball machine suggestions as well. p.s there is a star on **** right now for $700 straight from SP, It seems like a good deal but what do I no.