BAE Jerez also supply JOC training (we do it for BA, Aer Lingus, Airtours, Britannia). The course covers the MCC so gives all your legal requirements, but being longer (typically 30-40hours) there is time to really build on the skills that are required to actually do the job.
The MCC is a VERY quick introduction, leaving no consolidation time, but a JOC (or even MCC + a few hours) can make all the difference. The CAA/JAA don't want ANY hand flying on MCC so a JOC allows time to develop the handling skills for that sim ride on the interview. Most sim checks use 737 - our jet sim comes very close on handling.
It will cost extra - we charge 200 euros per crew per hour for sim AND instructor - so a 4 hour slot is 800 euros (400 for each pilot) so you can work out how much you can spend in advance.
BA reckon JOC saves them 1.4million quid per year because they do less remidial training on type conversions, so it does pay off.