In Ryanair we are not rated to fly both the 200 and 800. They are operated as two seperate fleets. This has led to increased costs and rumours suggest that the 200's may be replaced by some second-hand 400's. This would restore the one fleet situation.
We currently operate 20 200's. Eight were bought from Lufthansa. These are CAT 3a certified with dual Sperry SP177 autopilots. The rest are a mixture of CAT 2 certified ex-Britannia and Transavia aircraft with Sperry SP77 autopilots (no altitude cpature). We have one ex-Dan Air 200 (EI-CJI) which has an SP77 autopilot with altitude capture.
Pilots are allowed to fly all of the 200's but our six-monthly PC's are alternated between the SP77 sim in Dublin and the SP177 sim in Heathrow.
With the phasing out of the 200's over the next few years I doubt if we will ever get to fly the 200 and 800 together.