Route 101 in NH west to Rt 9 across southern VT becomes route 7 in NY. I would take that to 87 to 90 west when traveling to my mom’s house in WNY. It is the most direct route from southern NH to NY state. It is also the the quickest way unless it is snowing in the Green Mountains of VT.
Dropping down to I90 in Worchester, MA takes about an hour from my house.
Yep, I go thru there to visit Manchester VT etc :) Only way out of the Capital region, although there is a back way, but thru Troy is more efficient. My niece went to Lally School of Management/ RPI.
Just outside of Troy is Valente Lumber, where they have my log siding etc.
https://www.valentelumber.com/