Our school purchased 3 StingerPro bowling machines in the spring of 2016 and it is my option that this product is second to none in the scope of its price range. The StingerPro is well built & very user friendly, it produces consistent delivery's that all coaches crave for, we opted for the optional wireless feeders that gives me the coach the option to stop & start the machine between delivery's to coach. We purchased a dozen stinger balls that are perfect to simulate pace (80mph+) but the GM ball that is a heavy tennis ball gives the best all round performance. We also utilise the machine for tennis practise as well where it has also received excellent feedback for the students and coaches. We are planning to purchased 3 more units in the spring (2017) as this machine is now an integral part of our cricket training program. P.East