I’m in pretty much the same boat, but doing high volume. My A races are rattler and leadville. I’m wrapping up SSBHV2 next week and into sustained build (8 weeks) and then specialty (cut 1 week short before rattler).
Plan calls for an extra recovery week after rattler and then into SSBHV2, but cutting it really short (only 3 weeks total for base including a recovery week). Then into full build and specialty. I think I’m going to modify the suggested plan and add 2-3 weeks to SSBHV2 and cutting those same weeks from Specialty phase.
I think I put Rattler and Leadville both in as Marathon MTB events. I’m happy with the current plan up until Rattler and I’ll probably just revisit it as I can closer to that event and decide the best way to balance base vs. specialty leading up to leadville. If I can make it from October to August without a serious disruption to my plan (illness, injury, life, etc.), I’ll consider myself a very lucky man.
Good luck at both events. I’ll see you out there.