Get compressionless first, I found there's little difference between the BB7 and Spyres, latter is easier to set up while the BB7 required the non moving side to adjusted closer as it wear out.
The HY/RD is a big jump whether going for the Spyres is more of a crossgrade, just easier to fiddle.
are you selling the spyres scoble?
Tempted to get some hy/rd, but I won't be able to afford them for some time.