Not unusual since this is the first year HF. Your neighbor has some really big deer that were native genetics. I managed a ranch in the Hill Country that was LF when I started the first year in 1989. They were building the HF that fall when I started. I did not see on single 10 point that year LF and maybe one 9 pt but could not confirm it. The fence was finished the next year and protein was started. On the whole ranch I only saw 4 10 pts that first year on feed(second year). The second year on feed the number went to 12 or so 10 pts on the whole ranch. The next year I saw over 30's total in that on the whole ranch. Those deer were from the same genetics as when it was LF, they just got the benefit of increased nutrition and age. The genetics were there, what was lacking was age structure.