you should be good. Quick fix 5.7 seems to work.

Remember the whole key to subbing is the temp. as long as you do not walk in their and hand them a cup of cold piss you will be fine. keep as close to 98 as possible, i believe most places have to accept 90-100 degree by law, but you hand over a 90 degree sample to some doosh bag lab person and it may raise a red flag. practice keeping the temp warm and walking around the house with the sub in your hiding spot (crotch works best).

I find once in your crotch with a heat pad it is easy to maintain a temp of 96 or higher for over an hour or two. I like to get mine to 99 degrees and check temp in the parking lot before walking in for your test. If you get 99 in your car you usually have it in the cup within 5 minutes of showing up to the lab for your test. Urine usually cools at a rate of 1 degree every 3 minutes whithout trying to keep it warm.

If you have to take a seat and wait, hold or cross your legs together, i find that i can actually raise the temp by keeping legs together with a hand warmer heat pad.

I use 2 pairs of underwear for this job, one pair regular tight briefs and a pair of boxer briefs over the top for added insulation and security in case something tries to fall out...

Read the sticky on this site about subbing.

Practice, Practice, When you go for your test walk in the clinic with confidence, dont act like some sketched out nervous tool.

Some labs/clinics make you empty your pockets and such, each are slighlty different crotch the whiz to be safe...