What I learnt from my trimmer today
 

Vinyl stretches better in one direction than the other. Therefore for bends ensure you have if facing the right way

Most people put to much glue on trim

Most people do not allow enough time for the glue to go tacky before joining

The fumes are very toxic from the glues

Thanks for the tips. ;)

Yep, leaned all those tips the hard way. A little heat helps move the material into place as well.