Can I breed it???

I bred some bubba kush and some purple headband awhile back iv finally found a beautiful mom that is super..... And I have three males out of the same cross that are showing exactly what I want in the males and I will eventually pick one but iv been told not to breed the two of them together because they are from the same parents is this true that I shouldn't breed them or was the dude just not knowing what he was talking about? And if I shouldn't breed them what is the reasoning behind this idea

Breed em they will be fine, you could even mix the pollen from your males. Just read a good article someone reposted from mr soul. I suggest you read that.

I probably won't mix the pollen because I got one male that is showing all good signs and after a good stem rub your fingers smell like baby shit compared to the other two just smell like plant

Inbreeding causing bad characteristics in cannabis is a myth, do a cubing technique keep one mother and one father that you want pollinate grow out seeds, take clone from mother plant, take all males in outgrown seeds your f1 seeds, mix pollen, pollente clone continue.

nbreeding depression
After crossing and possibly back-crossing for several generations, the desired traits should begin to express in all individuals. However, after many generations of essentially limiting and reducing the gene pool so that only desired traits express, the resulting paucity of genetic material can lead to a level of inbreeding that is detrimental to the overall health and sustainability of the strain.

Put simply, if two related parents both carry the same recessive allele, which happens to be defective or otherwise deleterious, the chances of two identical copies passing to the offspring are far higher than with unrelated parents. If two individuals carrying these faulty alleles then breed with each other, the undesirable trait will be dominant and breed true in all subsequent generations of the lineage. -seshata that pretty much sated that along with stabilizing charecteristics youll also "stabilize" any negaive traits both parents may posess.

i'd be interested in swapping a few seeds if anyone is interested and it is legal... pm me.
i had afghani and afghan kush males this year. i bred them with all my females and am picking out seeds now. to keep track of what is what i used colored rubber bands, just placing one around the pollinated buds so i don't have to go through every bud by hand to find seeds. if you have several strains of pollen you can mark the buds by color of the r. bands, then make a note of what color is what strain. it went down to 7 degrees this morning and i had the heat going all night but my charlottes web got half frozen. i cut one bud and could only find three seeds but they were pretty small. they had as much time as the others and the trichomes are all white. time will tell.
i am looking for og kush, jack herer and blueberry seeds.

I'm about to breed dj shorts original blue berry with a bubba kush male if they turn out I'll trade ya some seeds I live in Denver so it's legal