On other HRT forums there are tons of guys using 29 gauge half inch needles for quads with no problems whatsover, and they did labs before and after to see the changes....and for test at least, Im not sure about other AAS, plenty of folks are doing it SubQ with good results...
So my opinion, your not wasting it if your shooting testosterone...Im not sure if there is a difference with other AAS, but if folks can use 29g half inch or SubQ, there is no reason to think that you are "wasting" your gear...now the whole abcess thing, if thats a problem Im not sure about it but would be careful...
As for me, Im one of those folks who changed to 29g half inch for the quads, and zero issues my labs are still good, never had an abcess...I also have used 27g 5/8" for my glutes and never a problem, I still seem to get stable levels with no probs...
When I do blasts and use AAS, I go back to 1" pins 23-25g for glutes and quads...
Not saying you guys are wrong, but just putting it out there others including myself who has to pin year round forever twice weekly, its nice to use smaller pins, and they fill up slower but its not that big of an issue