1st skill was a plain double, so I took block, but then failed the Aging

So now I've a 7/2/3/7 Dodge, Stunty, Block Skink with 12 SPP's (1 TD, 2 Cas, 1 MVP).
I'm loathe to retire him(the other 4 skinks with skills didn't get doubles) so how should I go about developing him? Should I follow the normal skink develpoment path (which I don't know, but it's on here), or should I go for something different?
My team is :
5 Saurus (1 with Stand Firm)
6 Skinks
1 Skink with Catch
2 with +1 MV
and him above.
RR 2, FF 9, coach, cheerleader and apoth.