The year is 2017 and I have returned to hifi audio to buy a la figaro 339, to be paired with hd600s w/ saa equinox, and a jolida glass fx tube dac.. placed my order a few weeks ago on shenzen audio, but the factory is on holiday? they should be shipping in a few weeks.. i told them id like to do a review, and im sure if it sounds half as good as i expect it all will together, ill be powerless but to rave about it. question - as i have a few weeks left to possibly add to my order, what upgrades could/should i request that give the most bang for the buck, beyond just getting the standard +$100 "Upgraded" version of the 339? I've seen so many custom mods done to LF339s in this thread, both homebrewed and by Yuking etc, that I thought I would ask and see if anyone would strongly recommend for or a gainst my spending more money on the 339.