Did I hear Fux right at the end when he said he was doing 50-60IU’s of Lantus 2X day?
On another forum a dude had problems, various but one was his big gut. Huge muscular guy. But the main problem was he couldn't lower his Lantus under 300iu or his sugars would skyrocket. I think he was on at least 100iu Humalog too. Roids were like like 4 grams of test and 2 grams of tren. I hope that fella got help, quick.
I've tried about 100iu, no hypo, it's like you can't overdose. Only thing is you shouldn't use it more than once a week or you could get like the fella above. It's hard to know what level of use "safe", it becomes somewhat of an experiment.

Lantus at a high dose will probably make you grow faster than ever, but there are potential issues. There are a bunch of pros who've tried 200-300iu but they don't want to talk about it much.