Track Sprinting

I suggested those just as a sprint session to put in amongst all that strength work. I don't know what you're doing on the ergotrainer, but ideally you need something where you are 'going as fast as you can on a bike'. (sprinting).

Also you appear to be in a strength phase without any standing starts in your weekly regime. May I suggest you add a session of those? At the very least, seated ones on road bike or ergo (big gear, massive resistance) will help recruit your muscles to work in a cycling specific way.

I think I already do something similar, I aim for 30 second max effort sprints on the ergo. Ergo session is simply:

-10 minute WU, then a medium resistance sprint for 30 seconds.
-5 minutes easy pedaling
-Max effort from a standing start with maximum resistance
-5 minutes of easy pedaling
repeat starting on the opposite leg, 4-5 more times aiming for the 30s mark.

This is performed once a week on a Tuesday, my week when working looks like this.

Monday: Gym
Tuesday: Ergo Sprints
Wednesday: Gym
Thursday: Easy recovery ride (Ergo)
Friday: Gym
Saturday: 4-6 Track bike sprints from almost standing start (approx 150m) using 48x13 then an easy 1 hour afternoon road bike ride.
Sunday: REST

I usually try a do 20 minutes on the ergo post workout to help with DOMS.

I have a few weeks off work at the moment so I'm gyming AM and then 1 hour road ride PM.