[SCWolf]

Honestly muscle pain isn't necessarily something to strive for during a workout. While "pain" is subjective per person, it is in no way something you need to feel when working out in order to make progress. A burning sensation in the muscles during the end of your set is something totally common though, but I feel that's not what you're referring to if you're doing 300 situps.

The easiest way to tell you're doing the job is when you feel a swelling in the muscles you're working, otherwise known as a pump. Working out to muscular pain sounds potentially problematic.

Not trying to shut you down or anything, just hoping to make things a little easier.

Also if by pain, you meant that burning sensation I was referring to then disregard this completely.