This is an interesting topic
Yes, and if it develops perhaps we'll move things to it's own thread.
We have a rather severe 3/4 frac rig but a large and powerful main. We do not have shrouds outboard, but we have decided to go with just a lapper jib, an Asymm and a conventional Spinnaker.
The rig proportions mean the headsails are small and manageable, esp for a doublehanded couple. Up until last summer I did feel the lack of power upwind in the light stuff, but then we were dragging a fixed prop. Now with a refurbished Max prop we are much faster in the lower ranges - enough to ease my earlier frustrations.
We can hit hull speeds beating once we have around 8 - 10 knots apparent. Off the wind the other sails will keep us moving rather well too. There are days when I'd like a larger headsail, but to be honest around here if the destination is upwind and there's not enough breeze to make real good time, we either choose a closer destination or resort to the iron gennaker.
The small jib means we adjust power via the main, reefing as required and have yet had to resort to partially rolling the jib.. beating (arguably our jointly favourite point of sail) is easy, the tacks are zip-zip, no yards/metres of sheet to haul or grind. No sailbags to find space for other than the off wind sails.
This is, of course, a non-racing scenario and I certainly don't mean to suggest that a single headsail program is for everyone.. on those older rigs with long J and short E measurement you simply don't have the flexibility in the mainsail to cover most situations.
For us, though, it's working. We sail more often because it's easy to do so, we fly the spinnaker a lot because despite being 35 feet, the foretriangle dimensions are closer to the average 29-30 foot masthead boat, keeping things manageable.
The basic concept being advanced in today's rigs - non overlapping and/or self tacking headsails, larger, more powerful, more adjustable mainsails, and the almost standard addition of some kind of sprit or prod along with efficient A sails is appealing on a number of levels.. at least to us.