"70%" rule relevant in DFW?

[Richard Lima]

I'm in Dallas, TX and have been seeing houses being sold as high as 82% for a flip property and not sure how relevant the 70% rule is in this market? Many deals are getting bid up to about that threshold and according to my numbers after everything there is about $20-25k to be made (if purchased cash) on a house being sold for about $130k-150k 

If using hard money, would you bid this high or is the ice too thin? (given about $4-5k in hm fees)