Ya, that is why you alternate intensification and accumulation ala Poliquin or Thibadeau. Not see results? Are you kidding? For training limit strength, the more often the better, why do you think o lifters lift twice daily sometimes. But you can't do 50000 sets, you have to drop total sets. When training for all out limit strength during an intensification phase, you could theoretically do this for 3 to 4 weeks depending on intensity and frequency. I would like to know how doing heavy triples, doubles and singles would not be intense? With limit strength training, the CNS is taking the bulk of the work, not the actual fibers themselves, therefore fiber breakdown is lower than normal. You can doubt me all you want, but if you read text by O lifting coaches, Poliquin and Thibadeau, you will find the same answer. When training for limit strength, frequency is important, but volume must be lowered accordingly per session. It would be smartest to do an intensification phase to develop a greater cns capacity and increase limit strength, then follow it with a less frequent but more intense accumulation phase which targets training in a higher rep range with the goal of breaking down tissue. A lot of people fail to do this and spend all their time doing high volume sarcoplasmic work, which is less than ideal. Doing so leaves you with less fiber density, myogenic muscle tone, strength, and CNS efficiency. It is also possible to do splits that train both simultaneously or by alternating week or by using the pendulum method. Overall, it is important to stimulate all the rep ranges to get the advantages of the different training intensities and levels. You are wrong by saying intense strength training should be infrequent. I'm sorry buddy, but if what you were saying was true, o lifters would train once or twice a week, which is the furthest thing from the truth, and they are probably the most efficient strength wise of all lifters. To stimulate the maximum amount of growth, train in all ranges using intensification and accumulation phases. I can provide you links to articles on the topic if you want, but HIT is pure bull**** and an illogical way to train for maximum strength. You can train just as intense using the methods I described and avoiding failure to aide in recovery and become more neurally efficient in the process, which will transfer over to all types of lifting. I really would like you to disprove the information I have just divulged or give it a try and you will realize this high intensity training in non functional range garbage is incredibly inefficient and draws out a simple process and yields less results. It is misinformation like this that people read and then become scared of training properly in the right rep ranges to actually see maximum benefits.