I tried PoliGlow with good results for two seasons
My 1882 Pearson was also looking dull. I took a chance on PoliGlow.
I used the accompanying product, PoliClean first. It's the best cleaner I've seen. Then 5 coats of PoliGlow per instructions. That was two years ago. It still looked good last spring but I applied 2 or 3 more coats anyway (didn't clean with the PoliClean that time) and it still looks good now.
I plan to clean off the PoliGlow in a few weeks and start over. The PoliClean is only product, the instructions say, that can remove PoliGlow. I'll find out how difficult it is to remove.
I read the Practical Sailor comment on PoliGlow when they did a report on waxes (it's plastic; not wax was the comment). They gave it good marks as i recall.