By the time i got involved the model names of the top end bikes were r600 and r700, pretty sure the tubesets were 853, 853 millennium, 853 aero and titanium, depending on model and model year. There were lower spec models in 531 and 501 i think, but wasn't particularly interested in that spec of bike! Not sure if raleigh were even still making 753 by then!
IIRC the 853 raleigh RSP/dynatech that you have became the first r600. 853 with round tubes. I have a very similar one. Initially sold to me as a frameset, logos showing raleigh RSP, so probably a little newer than yours. Dynatech had gone by then. Was later resprayed in r700 colours when i started riding for them.
Not even sure if there was a dynatech team, just raleigh but riding dynatechs. Much like raleigh rode m-trax earlier. And the torus as well. But i have seen a few dynatech jerseys about, so there may have been some team presence but possibly pretty low key, you'd have to speak to someone on the inside though to get chapter and verse! One of the Coltmans would know, don't know if they are on here (but they are on the Facebook page for retro raleigh stuff)