[Need Advice]Wind Breaker AP Distribution

So I've got this Wind Breaker. The regular STR distribution is Level+5. However, I left my STR at 4, but have saved up points just in case I need to up my STR. Basically, I'm level 52 with 4 STR and 53 Unused AP.

What I'm asking is if I should go STR-less or apply Ap to STR. I have all Maple Bows (an 81 Att Kandiva and 83 Att Pyrope Kandiva). I'm pretty much set until level 77, but I'm unsure if I need to get weapons that go further than level 77 (thus, requiring STR). This Wind Breaker is solely made for the KoC Buff, for making a UA, and a cheap, quick, effective way of playing a Bow Master.

Is it worth it to get a higher-leveled weapon for a character I won't be playing when I hit 120, or should I just apply everything to DEX and keep with the Pyrope Kandiva until Level 120?

Character is only for buff. Just scroll the Pyrope Kandiva as best you can and stick it out.






.......

i'd rather keep the maple pyrope till 120, and scroll it

Okay so I decided to go STR-less

Thanks for the help guys