To the OP really hard to say as there is not enough information available.
1.) How long have you been riding and typically if you do a long session how often, how many hours?
2.) For a recreational cyclist, you don't really need a solid base, what are your goals?
3.) If you are doing one day races occasionally it depends on the type of races. For a crit, strength and speed is more important, however if it is a 100 mile race, you will need endurance with a reasonable base.
4.) If you are doing stage races, say 5 days in a row, you need a pretty good base, if it is a 3 week tour you need exceptional base, followed by all the types of training to address your weaknesses by the time you peak.
In short this is like building a house:
You start with the foundation (base), then you build the walls (build), then you put on the roof (peak) and during the racing season you maintain the roof tiles.
After a six week tour, the walls will start loosing some paint and mortar, there may even be foundation damage, so you have to go back and do a little maintenance there before going back to cleaning the roof tiles. Otherwise the house starts falling apart.
If you are just a 60 mile day racer, perhaps twice a month and you are fit/in shape, you can afford to spend more time on cleaning roof tiles and do a long distance easy recovery ride (foundation and walls) about 3 times a month. You have to be able to read your body, to determine what is needed and when.
I've been riding for 14 months now, coming from a Football and golf background. I ran 3 years of cross country, but that ended 5 years ago. As far as my goals, I race crits and the few road races there are in my state. I want to upgrade from Cat 4 to 3 next season.
I'm in college, so last fall and winter I rode my bike about 6-8 hours a week but ended up doing a SweetSpot base with TrainerRoad in the off-season. After doing some research on the adaptions that occur in the body with a Traditional Base I want to do one of those this fall, but don't know whether or not a Sweet Spot base after would be worth it.
I'm starting this at the end of August, which gives me 37 weeks before my first main event in April. It's a lot of time, but I think 18 weeks of base and 18 weeks of build is too much of both, maybe sweet spot in between would fill in the middle part of that period efficiently?