Gut training w/o breaking the bank
What methods do you use to practice taking a lot of gels (and finding if/when your body will start rejecting gels) for ultra training without spending $40 per long run (and if you do back-to-back LRs then the price gets crazy).
I tend to just use cheap carb drinks like Gatorade an like 2 gels even on 3-6hr runs. Do you just do this one day a week once a month? Do you dedicate the money every few weeks to practice your full race nutrition profile? Do you end up spending a good chunk of money? Have you added aid station food like chips into your long run training?
Also random bonus question: do you test things like Imodium or is that strictly for race day emergencies?