Re dipless x-fades...
theres a setting I learnt about today - which i was un-aware of...
You can change the way x-fades work in mix windows by selecting either 'Glitch A' or 'Glitch B'.
X-Fading works slightly differently in a mix window due to 'double transparency' - so theres a 'B' setting to compensate for this.
Try selecting 'Glitch B' from the 'Mix Type' options and see if this helps.
Cant take credit for this nugget of information - thanks goes to RB...
Simon