Gotta question for laying a new woodfloor over an old subfloor.

See this thread with pics and more details on the actual subfloor:

help-with-strategy-for-yellow-pine-issues-t7057.html#sthash.Axqlm8QY.dpuf


Gary wrote:
"What you're looking at was never intended to be a finished floor. That is T&G fir decking used as the subfloor. Initially, that was covered with real linoluem. Then at some point, someone ripped out the lino and decided to use those fir subfloors as finished flooring. "

Fast forward to today...

This 'subfloor' actually looks great now (Bona Drifast + Traffic) but unfortunately it has been sanded too many times in the past (a few times by chumps without the correct skills) so at this point in its life it's getting cracks/splinters at the tongue and groove joints. Instead of ripping up the fir subfloor and installing a new subfloor and followed by the actual wood flooring, can a new wood floor just be laid over top the current old subfloor, with the wood strips oriented in the same direction? Or will this cause problems?


Thanks a bunch!