I've used Xtol replenished which is similar to 1+1, on some films it is the same resolution/detail level as Rodinal 1+25 but finer grain, and ahead of 1+100 stand developing. That said I've been playing with catechol based staining developer, that's higher resolving.
You don't need a tripod and shutter cable for high resolution, I've found switching developers makes a bigger impact (unless your shutter speed is simply insufficient), I've had a range from <40 lp/mm to 85-90 lp/mm for the same film, with different development.
You may want to look into Spur HRX (or even Spur SD if you dont mind speed loss for detail gain), going by Henning's results it is a fair bit in front of Xtol and other standard developers.
I mentioned Rodinal 1+100 wasn't as detailed as 1+25 and Xtol, on FP4+, it was limited to about 40 lp/mm.
Another thing you can do is developer modification, I was playing around with adding Potassium Bromide to developers to lose some speed, but what I found grain and detail didn't change. However, when I used Benzotriazole instead, grain and resolution both improved.
Here is a sample of FP4+ from one of those experiments, top sample is Rodinal 1+100 stand, bottom is also Rodinal 1+100 stand, but with 500mg/L of Benzotriazole, 900mg/L Potassium Thiocyanate, 5mg/L Potassium Iodide added, Benzotriazole on it's own would work too. The bottom sample is of course a couple stops of speed loss. My guess is you'll probably get the most out of the staining developers for a given speed.
http://i.imgur.com/4ZPO3Qs.jpg