Not sure if this is the correct place to ask but I have a lab at home to study for CCNA and beyond. I came accross a post on the interwebs that uploading 12.4T may be possible on a non-XM 2600 router.
I installed the version that would fit 12.4.9T I believe, it boots and functions fine. It has 128D/32F, do you forsee any issue of doing this for a lab work in the future or should I invest in the XM series to get to the 12.4T series.