A rookie's NFL method

I know most you oldies here don't like the chase method.  However, it has worked for me in the WNBA this season (no loss) (road trip system playing against the team on the road and doubling up). 

So I thought this out for the NFL.. Take the top 2 teams ATS and bet on them.  Take the bottom 2 teams ATS and bet against them.  Start with 1 unit.  A win will take you back to 1 unit on the next games.  A loss and you double up until you win.

Since it was week 1 last week, I used the Preseason ATS records.  Top 2 were Seattle and Det (did not include NYGiants since they only had 3 games)
Bottom 2 were NEP and Cleveland.

So my bets were
Seattle (lost)
Det (lost)
Kansas (They played NEP) (win)
Dallas (they played Cle) (win)

ATS will be updated and I will adjust bets accordingly.  So for Week 2 I will be doubling up on the losses (+juice)...

Buffallo 2u
Seattle 2u
NYJ 1u
Pitt 1u

Backtracking 3 seasons gave out at most a 4game losing streak so I am prepared to go on a 5 game losing streak on all 4 teams.

i plan to play until week 13.  If a win on week 13 I stop that series.  If a loss, then continue to play till stop.  that way I have up to 4losses to chase.

I am doing a similar WNBA playoffs thread too...

Need your comments and advice (although I'm pretty set on doing it, I've started already).