I don't think a new technique is a strength. It doesn't become a strength until you are really good at it. Lacking it may or may not be a weakness, depending upon context. So developing a strength, in the MA context, either means developing an existing skill to a highly functional level. If you decide to do that with a new skill, it's a very long path in most cases.Eliminate weakness if you can. We depend upon our techniques. Depending on a poor one can be a real problem.
Put another way, I'd rather fix a hole in one of my techniques than to start learning another.