I'm still new and learning the ins and outs of high level poker. I really want to know more insights about limping? Is it just generally bad to do in poker? Do you have any advice on good moments to use it to your advantage?
There are two types of limping: open-limping (everyone before you folded and you limped in) and overlimping (somebody limped before you and you limp behind)
So, openlimpng in MTTs:
1. 20BB+ deep it is a bad idea, unless you are the SB, SB has a GTO limping range and it is quite wide.*
2. Less than 20BB there are strong GTO limps from different positions, but do not GTO limp unless you are in a strong game, people tend to misinterpret it as weak limping and you are very likely to find yourself five-ways+
3. Less than 10BB there are no limps, the game is basically push-fold unless you are playing against a really weak table of calling stations, in the later case limping becomes viable again as you don't have enough fold
equity against those people.
4. Trapping. You can trap with strong hands like AA, KK, etc if you have somebody extremely aggressive on the table and pretty sure that you will end up heads-up against them and will make them inflate the pot for no reason if you limp.
Overlimping:
1. Is overrated, looks like a lot of people tend to believe that if someone open-limped, they can overlimp with all sorts of garbage, which is a false impression. I recomend overlimping with low suited aces, suited connectors, good suited 1-gappers and low pocket pairs for nut mining (if you are going multiway) or isoing with strong high-card hands.
2. Basically, if you are again on a calling station table and you are pretty sure that if you are going to raise, half of your table will call, you can open-limp with the beforementioned hands regardless for pot control and nut mining.
*It is only so for MTTs. AFAIK cash doesn't have a SB limping range because of the rake.