I started a thread a while ago about losses here as I was disappointed with the amount I was ending up with in bottles.
I learned 3 things that have made massive difference.
1) Chippy's pre tilting the DJ before starting the syphon, and using a clip to hold the syphon in the orientation you want
2) Popping a hop sock over the end of the syphon sediment trap allows you to get the trap right down onto the trub and minimise pickup
3)Hoddy's video about starting a syphon by pre filling it with no rinse sanitiser.
I also found that the tap on the end of my Wilko syphon leaked a bit, so I pulled it off and put the syphon tube straight onto the bottling stick. Works a lot better now. I bottled a cider on Thursday and got an extra bottle out compared to last time around :)