I think the linear progression will work out ok. I have done that style in the past and made gains, but that was a long time ago. My legs felt good after the session. I think that as long as I continue to hit them 3Xweek I'll get the progress I want.
Given the oppurtunity to go back in time and not do the sport that I injured myself in, I'd still do it!
This is me in 1980 going last out the door of a DC-3 over Arlington Wash.