My friends and I have been playing your fantasy competition for the last few years and it is great fun. We generally do the "Standard" competition, but for La Vuelta this year we all felt that we didn't have the time (kids, wives, bikes, etc getting in the way) to think about transfers every day, so we opted for the "Purist" competition instead.
In both competitions we've found that the contest is sometimes not as good as we might hope; the "Standard" competition is sometimes a bit too intense (the number of transfers available means you have to consider your team pretty much every day and we don't all have time for that, as mentioned above) whereas the "Purist" competition is very limited with no interaction (and a couple of us have had our team decimated by injuries with no chance to swap anyone in).
As such, I would like to suggest for future grand tours that you add a "Minimalist" competition (name not important). The new competition would have a much lower number of transfers (perhaps 10) than "Standard" while not being completely fixed as "Purist" is. Given your new "game engine" I would hope that adding an additional competition would not be too difficult?