I have three coaches at the moment who do not really agree on much. I find it makes things difficult because what one coach agrees with is a mistake to another. If I had the choice I'd just choose one coach.

Having said that I think it's good to know of other styles and other people's perspectives so if you can train with both for a while without committing to fighting under them it might be good.

I guess it could also depend on how different they are and how they react to you using things taught by the other coach. I'd love it if I was allowed to take what I could from each coach and use it as I was able to learn it rather than being banned from using other skills until I have learnt their individual styles completely regardless of whether or not they suit me.