Recruitment feels slow for me, too... but I have no frame of reference, as this is the first time I have applied for a role with SWR (or any rail operator). For anybody reading to gauge a timeline (as I often do!) I'll throw my experience in so far. I applied in December '25, computer assessments passed in March & April and I have just been invited to my DMI.
So, seems things are moving, albeit slowly. For what it's worth I have heard several times now on the forum and in conversation at my assessments that SWR are recruiting more than usual this year and next, and that it's a "good time" to be part of the process. I sometimes read through the forums for other rail operators across the country and feel good about being in the SWR catchment area & recruitment process - from what I gather it is actually one of the faster operators to get through the process!
Overall I'm working under the expectation that the process from application to offer can take anything from 9-18 months, with multiple months between each stage pretty common.
Well done on passing the DMI & best of luck when you do hear regarding MMI.