The best way to test hand eye coordination is to catch wasps. It takes extreme focus and determination because if you miss, you better run. Sure, you can wear gloves, but the real ones out there will go bare handed. Catch 'em by the booty and they're harmless! It's really the best teacher because if you start 'em young, they will quickly learn to perform well or else they will get a stinging surprise! By the time they are ready for the SHL, they're hand-eye coordination will be off the charts and ready to make an impact. 

Yes, of course, we let the wasps go. No wasps were harmed in the making of this player. Not only does that train hand-eye coordination, but also pressure sensing within one's hand. Don't squeeze too tightly! It really is the best practice out there and costs basically nothing except possibly your well-being and sensitivity. 

*Disclaimer: don't do this if you are allergic! Or...do?