Thank you for that, I was down to about 10k QTL and that really helped. Yes, every time I test new versions of the trader, I lose both btc and several alt coins in the process.  I leave it running overnight, sometimes weeks to catch bugs and give Markus errors and feedback. One of the main issues I was having was when arbing the Poloniex side did not go thru always and the order also did not stay on the books as unfilled, it just was gone. So Markus fixed that so the order remains on the books. Of course you can delete it if you want manually. But that is just one example of all the beta testing I have been doing for Markus for free since the begining of QTL. I also had to send QTL back and forth from Bittrex and Polo, losing coins all the time. So I just have enough to test all the functions. I think Markus is going to give me a licensed non-restricted copy if he decides to sell them, and then I wouldn't need to worry about losing QTL through arb or transfers, but I will always hold 15-20k, it is just that testing you can lose a lot of coins sometimes, so I kinda ran out of alts to test arb (like 8 at a time) and bitcoin.

And to the last poster, I think Markus is contemplating selling copies that don't require QTL holdings for either QTL or BTC, but just like everything else, this is all just contemplations now.