OK guys. I have a 16 ft alumaweld and have a hds7 lss1 on rear that ive been trying to learn all i can about. I plan on now replacing my front unit(cheap HB) with another lowrance. my question is for the front is there much benefit with going with another hds unit over one of the elite models(besides linking the sidescan). My thinking is normall i would scan a bank and if theres anything go back and jump on front and fish. Am i thinking wrong? And what would you guys reccomend for a setup like that? Thanks in Advance. BTW its almost going to be solely for crappie(some catfish).