I have A high shooter too. But I think the answer is that the RR model was the departure form flat shooting guns in 77. Adn then it took browning a couple more years to adjust it back down again. But RR is you answer. And I think RP is a 79 but I'll check on that an dedit this.
I have an RR I am going to sell, 34", adjustable comb and butt plate by Country Gentelman, Spears release and Warwick case. Bluing is very good to excellent with a few dings in the wood from handling. $1200 + shipping.
RR's shoot higher. You can check the Browning website to verify the dates for these guns. Keep in mind that RS were made before RR's, RR's made before RP's. My BT-99 is a RN and it shoots 60/40. My gun was purchased new in 1979. It also matters whether it's a Monte Carlo stock or regular straight stock. Mine is a straight stock. Hope my 2 cents helps. Darrell