I use an agitation scheme that is close to what Ilford specifies, 4 inversions of my SS tank in 10 seconds per cycle. I perform one agitation cycle immediately after the developer is added, then 2 additional cycles each 30 seconds, after that one cycle each 60 seconds. I also run my chemistry @ 72F/22C (adjusting time according), and tend to overexpose about a half stop. I tend to get reasonably contrasty negatives with Ilfosol 1:19 and HP5+, so it seems one or more of my practices here are helping to that effect.
I've used TriX 100 in Ilford DDX stand developed for 45mins @20c in a Patterson tank. Only agitation is 10 times at the start of the process then that's it. Mixture ratio is 1:9. I agree it's not a cheap developer but it works great. Grain is minimal and has good contrast.
Is 5052 "TMax professional" or "Professional TMax"? https://imaging.kodakalaris.com/sites/prod/files/files/resources/f4016_TMax_100.pdf or https://125px.com/docs/film/kodak/f32-TMAX.pdf