Dbol will produce more water retention than tbol, but overall, I think the gains are better and it is a safer drug, based off what I've seen in my lab work. 100mg is a lot of either dbol or tbol. I would imagine you could do well, using a little less dbol and suffer from less water retention.
As for PCT and recovery, using some HCG while on cycle would be a wise choice. Deca shuts guys down hard...harder than the dbol or test will. So some HCG will keep your body used to producing while you are on. Then cut that out a few days before PCT. Since deca has a long half life, you might want to consider running your test 1 wk longer. So if you were planning 12 wks, you could do this something along these lines
adex, HCG, stopping the HCG a few days short of wk 15
Clomid 100mg ED
Clomid 50mg ED