I’ve been playing tennis since I was 5 – I was serious in my youth, recreational from 20 to 35, and serious again from 35 to now (48). I’ve had a lot (a lot) of experience with personal and online coaching (plus books) and I want to say that you are the best coach I’ve found so far.  For me, it’s easy to determine who knows what they’re talking about and who doesn’t – I try it out and see if it works.  That serve series has some things that I’ve never heard before (or never heard explained in the right way) and I’m a bit blown away.  I haven’t incorporated everything yet but two things really stand out – the relaxation during a certain part of the movement and the toss.   I initially thought you misspoke when you were speaking on relaxation – you were talking about a movement happening by itself and I thought, that can’t be true – but I tried it and – wow, the sound.  I’m now 100% convinced.  All that effort I was putting into my serve – the wasted years.