giannip said:...On that course it's pretty much that people just drop off and then there's maybe 20-30 or so left on the last lap and the last time up the climbs it's whoever can hang in there....
O.K. so it sounds like your basic attrition course with the stair stepped climb being the crux. FTP explains why folks might make the first lap or the second and then get shelled so keep that in your training schedule. If the steps are less than 6 minutes or so and there's chance for rest and wheel sucking on the downside of the rollers then I'd hit L5 pretty hard in your final build as well. If the stair steps or critical sections of them are steep and short as in two minutes or less then I'd work in some L6 on similar hills as well. Since you don't sound very confident of contesting the sprint I'd drop those sessions from your training during your final push and use the time for some of the stuff above.
Only you know your strengths and weaknesses, but hold those up to the course you just described and put together a plan that builds the most important things which are most likely FTP and VO2 max and continues to build CTL up till your taper. From that standpoint or if the hard workouts leave you a bit flat you might swap some pure L4 work for some high end L3/SST work so that you can go a bit longer in level and continue to build CTL without completely trashing yourself.
When I get a couple weeks out from an important event I spreadsheet CTL, ATL, TSB with estimates of my daily TSS, duration and intensities. It lets me do some "what if" planning to see how deep a TSB hole I'll dig and how fast and far CTL will fall during the taper. I just use a simple block average estimate for CTL and ATL by creating a spreadsheet with the following formulas:
CTLd = (CTL(d-1)*41 + TSS)/42
ATLd = (ATL(d-1)*6 + TSS)/7
TSBd = CTL(d-1) - ATL(d-1)
It's not exactly the same as the exponentially weighted average in WKO+ but gives you a pretty good estimate and is simple to code into a spreadsheet. I shoot for a low positive TSB on my prerace day which usually gives me a slightly higher positive TSB (+2 to +6) on race day. This has been working nicely for me, but look back at your previous TSBs before your best races to see what works best for you.
Good luck,
-Dave