The quality of comments on HN seems to be falling pretty quickly.

It's a good idea. I think technical founders are probably a little underrated in your model.

Otherwise, I don't know if equity calculators are a great solution in general. They just tend to shift the problem from the importance startuppers give to different topics to the importance a program gives to these topics. On top of that, discussing non-round amounts >10% (such as 19%, 23%, etc.) just gives much too much importance to a few %, which paradoxically makes discussions tougher down the road. Better to round things up (70/20/10, 60/40) and just leave things at that.