Thanks for your feedback.I worked with Tickmill Seichelle on MT4, the slippage was about 8 pips, I've never seen anything like that, after I switched to Tickmill UK MT5 and trading conditions have improved significantly. I've never seen anything like that before.
TickMill HelpDesk assured me all TickMill entities eg. TickMill-UK, TickMill-Seychelles are using the same data centre in London and therefore they all are having the same trading conditions ie. spreads, slippages. It certainly looks like that's not the case for you.
Are you giving up TickMill-Seychelles 1:500 leverage for TickMill-UK 1:30 or are you using some trading professional qualification to attain 1:500 leverage for your TickMill-UK MT5 account?
Is your TickMill-UK MT5 trading result based on v1.8 Demo or 1.9 Demo or 1.8 Live or 1.9 Live?
Thank you very much.