Are these good for a 2nd razor?

I have a DA (6/8 round) now and I don't have any problems with it except the scales and I have someone who is going to re-scale it for me.

Should I get a wapi next?
Someone told me to get a 5/8 blade next and also suggested I go with a spike. I have found a torrey 5/8 spike in bone scales I think is very cool. And the shumate 30 5/8 spike. Are these good brands and good representations of each brand? I am open to some suggestions for a good 2nd razor.