i have 2 york gilts out of invite only at lairds would like to breed them cross i got told all summer they needed more shape same with the littermate barrows that were shown so what is a good cross boar thats going to add the most shape

the pigs iv had out of him were really green early have herd of other people having same problems but pigs are usually problem free sky cam make his daddy look bad tho just my thoughts

iv used both spiral rods and foam tip and have decided to try post cervical ai my biggest question is how far inside do you put the inner catheter? is there anyway of telling how far is far enough so you dont punture the uterus?