Topband: loop question

[w3aw@aol.com]

    I have a large horizontal square loop about 625 feet fed with 30 feet of 300 ohm ribbon cable.  For field day I made a smaller horizontal loop, 430 feet, triangle shape inside the larger loop also fed with 300 ohm twin lead.
  What if I connect the smaller loop twin lead to the feed point of the larger loop thereby using both loops with a single feed.
Any advantages/disadvantages doing this?
W3AWKirk