I think a small bit of caution needs to be regarded when trying to bundle in an
extender.
I have bundled in the
phallosan ( yes it can be done) and read quite a few people who have used an auto
extender ( same thing basically as a phallogenetics). I'd start no more than 30 minutes. It really get uncomfortable and the shaft started to feel very cold like it was losing circulation. This was done at only one turn..
The other issue that I came across is condom size. I bundled and stretch every time I take it off for a bathroom break. The issue is is I'm big enough for a large but if I bundled the large becomes too big and have fit issues. This applies to bundling going into a
phallosan normally and bundled extending since it things out the penis Atleast for me.
For me the absolute best has been bundled and go into a
bathmate. This has gave me max expansion at quicker time.Slap on a cock ring to keep the plump. Then I put on the
phallosan with the cock ring on to keep my post pump length and the cock ring still keeps the girth so I'm hitting maximum expansion in all areas