what kinda triggers are you using? and what angle are they lighting at? I would maybe try doing the higher powered one to the right and forward(to create rim light) and then one either left or right and behind to fill in a little Whats the settings on this one?
By the way, my Aunt mentioned you stopped in at where she works and told her to tell me to say Hello. Hello back, hope you guys are doing well!
We are doing quite well. It was kinda funny with your aunt: we were telling her how we liked to get on the ice and she said she has a nephew that also likes to do that and lives on the northern part of the peninsula; I asked if he was a young, tall good looking guy that cuts rocks [or something like that]!!! Small world!!!
We shopped around and bought Yongnuo "YN560". I think we each have three and they only cost around $65 each. These can be set from 1/1 to 1/128th power. We also bought flash triggers from the same company Yongnuo and for my Canon the model is RF-603C... there is different one for Nikon [RF-603N]. They come in sets of two for around $30 per set. These work extremely well with the Canon and Nikon. We had them shipped from overseas [they arrived in about 10 days]... and have had no problems with any of them. The flash triggers use AAA batteries and last for several shoots before recharging or replacing batteries. The AA batteries for the strobes wear down quicker but if you are not shooting hundreds of shots at a time you will never notice. There are slide brackets available that mount to the tripod head... so you can slip the trigger with the strobe on top of it on the tripod... or you can stand the on the ground or on a rock. Get an extra set of triggers... 1 for your hand and one for the top of the camera... this way you can take your photograph even if you are in the field adjusting a strobe... the trigger also fires the camera.
I usually use three strobes at low power for fill light [1/32 to 1/64th... short light burst] to catch more wing action and detail. As far as your own usage... just experiment with a few and you'll see what works best.