@boogie789 depende talaga sa iyo. Sa pagkakaalam ko (most info got from the forum and online, pero try to search din).
Kasi 1 year validity yung medical. And depende sa case (unless ipa form 815 ba yun) yung initial entry date. I think usually 1 year from medicals and police clearance, pero kung ipa form 815 pwede mapaiksi to 6 most initial entry.
Sa case naman ng pag generate ng HAP ID for medicals, guidance sa website is pwede kang mag generate ng hap id and do medical before lodging, (indicate mo hap id sa application mo). Para mapabilis processing. If not antayin mo pa CO contact para ibigay hap id mo. So dagdag antay pa assuming 3 mos before co contact. If may budget for medicals, siguro better generate na hap id and medicals before lodging if hoping for direct grant. If di nagmamadali wait for CO contact siguro 🙂