The one thing about mounting 2 up front is I only have one seat up front and fish by myself mostly (can't get the Pop in law to go so much--the mom in law has him on a tight leash ) But as mentioned about having spare mounts mounted rear it would be no big deal to have two sets of holders and 4 mounts. Two up front and two out back so I can move the holders where ever I need. I tell ya I love this forum