ClearVax Canopy Set?

I was pricing out one of my next projects, the 1/48 Hobbycraft A-4B, and ran across this accessory item at squadron.com: http://www.squadron.com/NoStock.asp?item=FA0153

My questions are: what exactly is this? Replacement clear parts or the whole canopy assembly? What is the advantage of using this AM set over the kit pieces? Soes anyone have experience with this particular item, and do they recommend for/against it?

Flynavy1958

It’s a clear vacuform canopy to replace the kit parts. Gives a more scale look in thickness. Sometimes they correct shape problems with the kit parts depending on the kit. I use them about 50% of the time. On some kits you have to use them if you want the canopy open because the kit canopy won’t fit in the open position.