Track Riders - BT003 discontinued. Next best track tire??

So I've been buying BT003's for the passed 3 yrs for my WR250X, not knowing they've been discontinued for probably over a year now.

What are your tires now for track riding?? I REALLY REALLY liked the BT003's; incredibly good grip.

I might consider doing 150 rear, knowing how very little 140 choices there are out there, and 120 front.

My riding is 90% / 10% street. Yeah, ass backwards w/ a street legal bike. Street riding became scary for me after my first track day.

I have a feeling i will not get many answers

Thanks in advance!

If you're looking for a track tire, I'd go up to 120/150 since there are a lot more choices in that size.