How can one avoid distortions in the expected P&L when trading futures curve plays vis a vis cash curve plays?
When trading 2/10 spreads I use the same DV01 but the P&L doesnt reflect the same flattening or steepenign as there should be in the cash markets. Is there any way to improve that?
Thanks!

Futures differ from bonds... If you insist on using futures, be prepared to be exposed to risks other than just simple curve and direction. Some of those risks represent what basis trading is all about.