As someone on here that has a long history of being particular about beefy necks, in general you will have a hard time finding older models with thick necksThey do exist but more often than not, they are not thick. Most of the 80’s have thin, flat D shape necks which coincides with the 80’s superfast, super slim neck phase when shredding became the goal of many new guitarists. In the 90’s, Heritages became more rounded yet thin. Then slightly thicker in the 2000’s. In the past 15 years, they became increasingly thicker. Most of the Heritages since 2016 are chunky necks, the kind I like. My last purchase was a ‘23 H150 Standard and it has that big hefty neck I wished all my previous guitars had.
In 2016, ownership changed and so did a lot of things at Heritage. Constant debate amongst us of what is better, pre or post Plaza Corp made Heritages. Quality, pricing, model availability all changed. I won’t drag you into the weeds in that one, but production methods changed as did the tooling along with a new generation of guitar manufacturing employees.