USED Malibu vs Tige vs CC, etc. lake test.

Its easy to go and test out new boats but where can a blue collar who works just as hard as the 100K boat owners go to TEST all used 2000-2005 $20-$29k boats above at the same place in this country.
Go test drive them is good advice but usually involves newer boats and The forums are no substitute for lake test.
This poor sap is looking for his first V-drive in the middle of no-where and will be wakeboading and surfing. as many have owner goggles and can be naturally biased.
Have a '97 sport nauti, DD but man is the wake ever touchy if the boat leans or turns a little. Are the SANS this touchy? Cant get WtoW so thinking maybe a different hull might help thats not so steep and has more gradual ramp or will I out grow it and wish I had a steeper wake when the tricks start coming? Wouldn't mind something with a deeper interior as our knees are practically up to our chest when sitting in the '97
Who is the biggest used boat dealer in the country with various older brands to test?
thanks ahead