I do hill intervals once a week - typically a 4 to 4 1/2 minute hill at 6-8% grade 6x with a 4-5 minute rest in between. In the past I have gone out hard ("all out") on each one - as a consequence my times (predictably) go down from first to last interval. On the last 2 I am not likely at lactate threshold on average (as measured by powermeter - although HR is at it). Based on some other cyclist's advice I am going to try (starting today) balancing the efforts and hit all 6 pretty close to each other - so less than all out effort on first couple and hopefully better effort on last 2.
For those who do hill intervals - what's your take on these 2 alternatives?